Weatherford International (WFT: 17.90 +0.62%) rose 2.3% – Cramer feels that Weatherford is the cheapest oil stock around. He recommends that investors buy the stock “aggressively” at its current price around $16.

Prudential (PUK: 23.22 +0.04%) gained 3.0% – Cramer is very bullish on the stock and feels the business is “absolutely fabulous”.

Potash (POT: 46.46 +1.02%) dropped 0.2% and Terra Nitrogen (TNH: 210.50 +4.31%) fell 0.8% – Cramer feels that Terra Nitrogen is a great play on agriculture and he’s sticking with the stock, but prefers Potash given the momentum he’s seeing.

ArcSight (ARST: 0.00 N/A) fell 0.3% – Cramer recommends ArcSight as the top internet security firm for investors given its momentum and growth prospects.

Zhongpin (HOGS: 10.91 -2.24%) dropped 0.7% – Cramer remains bearish on Chinese stocks.

Symantec (SYMC: 17.75 +0.74%) dropped 0.7% – Cramer was bearish and recommended ArcSight instead.

Starwood Hotels reported a monster quarter with earnings of $0.51 per share. Wall Street analysts were only looking for earnings of $.22 per share. The resulting 132% upside surprise has gone largely unnoticed.

It is important to note that Starwood’s earnings performance was not just driven by aggressive cost cutting as we have seen from many other earnings “beats”. Business at the hotel chain seems much better than Wall Street anticipated and the company increased their guidance for the remainder of 2010. The company is already benefiting from improving economic conditions as both business and leisure travelers are starting to spend once again.

Cramer believes that Starwood is also well positioned to capitalize on the economic recovery as the company was active during the past recession by opening new locations and closing underperforming hotels.

With the vast majority of their hotels located overseas, Starwood seems like a perfect play on the return of business travel.

Cramer is clearly very bullish on Starwood Hotels and recommends that investors buy Starwood stock.

Jim Cramer said that the fourth quarter was “magnificent for retailers” despite the doom and gloom forecasts that seem to be daily in the headlines.

Deckers Outdoor (DECK: 87.25 +1.21%) – with its highly successful Ugg boots brand, saw an impressive $0.94 earnings beat.

Gap (GPS: 21.28 -1.85%) – the retailer reported earnings that were $.02 above the Street estimate and their positive outlook was accompanied by an 18% dividend increase. Although Cramer did express some concern over the Gap pursuing both a dividend program and a stock repurchase program.

True Religion (TRLG: 37.00 -0.78%) – despite the very high price of their products, the company was able to report a good quarter with earnings at $.04 ahead of consensus estimates.

Home Depot (HD: 45.17 -0.64%) and Sears Holdings (SHLD: 48.80 +3.17%) – strong earnings by the home retails signal a potential turnaround in the housing markets.

Saks (SKS: 10.88 +1.49%) and Macy’s (M: 35.86 -0.03%) – sales were even strong in apparel stores.

The positive results from retail stocks are a very bullish indicator and seem to have sent the bears into hiding for the time being.

Over the last 6 months since Mr. Cramer unveiled his mobile internet index, the Dow Jones Industrial average has gained 1,000 points or 11%. The technology-focused Nasdaq index is up 12% in the same time frame. So how has the Mobile Internet Index performed?

Unfortunately, the last 6 months has to be considered a mild disappointment for the mobile internet index. The index as a whole is up 9.6% during that time, but has underperformed the 12% gain in the Nasdaq.

The Mobile Internet indexes performance has been weighed down by a couple of extremely poor performances. The worst performer in the index, Palm (PALM: 0.00 N/A), has lost over half its value in the last 6 months. Tessera Technologies (TSRA: 19.31 -1.18%) stock has fallen over 30%.

While the overall index performance has been disappointing, there have been some stellar individual stock performances. Sandisk (SNDK: 46.84 +2.03%) is up an amazing 65% over the last six months. Starent Networks (STAR: 0.00 N/A) shares have soared over 56% since last August. In fact, 14 out of the 21 stocks have posted 6 months gains with 12 of those 14 stocks delivering double digit gains.

The big names of the index, like Apple (AAPL: 476.68 +1.67%), Google (GOOG: 609.85 +0.51%) and Cisco Systems (CSCO: 20.43 +1.14%) have also outperformed the broader market indexes with Apple leading the way with a 21% gain.

Tuesday
• Whole Foods (WFMI: 0.00 N/A) – Cramer is watching same store sales (SSS) to see how much the economy is continuing to impact consumer demand.

Wednesday
• Chesapeake Energy (CHK: 22.11 -0.32%) – Cramer wants to find out about their drilling costs and see if the company reports any new finds.
• Agnico-Eagle Mines (AEM: 35.50 -1.77%) – Cramer wants to see how their mining costs are tracking.

Thursday
• Bucyrus International (BUCY: 0.00 N/A) – Cramer will be looking beyond the numbers to see what commentary the company has on the strength of demand in China.
• First Solar (FSLR: 45.81 -1.67%) – Cramer wants to see how much of money First Solar is making on each panel and reliant the company is on government subsidies.

Monday
• Humana (HUM: 85.15 -1.18%) – Cramer wants to see how people react to the report to see if health care reform has any life left.
• ExxonMobil (XOM: 85.32 -0.64%) – Cramer hopes to hear an update on the future of natural gas in the U.S.
• Plum Creek Timber (PCL: 39.56 +0.13%) – Cramer believes this will give us an idea if the real estate market has bottomed out.

Tuesday
• Whirlpool (WHR: 70.20 -0.71%) – Cramer wants to see how the company is doing in Brazil.
• Dow Chemical (DOW: 33.95 +0.27%) – Cramer is watching to see what demand is currently like for their chemicals.
• BEA Aerospace’s (BEAV: 45.78 -0.26%) – Cramer is listening to see if he is too bullish on Boeing (BA: 75.46 +0.94%).

Wednesday
• National Oilwell Varco’s (NOV: 81.77 -0.41%) – Cramer believes this report will show how strong demand is for natural gas drilling rigs.
• International Paper’s (IP: 30.95 -0.51%) – Cramer says this report will be a view of the health of the global economy.
• Polo Ralph Lauren (RL: 171.49 +9.18%) – this report will indicate the health of the high end consumer.
• Several mobile internet stocks will also report on Wednesday afternoon, and Cramer wants to see their reaction to the iPad and the recent drop in Apple’s (AAPL: 476.68 +1.67%) stock price.

Thursday
• Several dividend stocks including Clorox (CLX: 68.38 -1.71%), Kellogg (K: 50.34 -0.94%), Suburban Propane Partners (SPH: 41.98 +2.97%), and Pitney Bowes (PBI: 19.50 +0.05%) all report earnings on Thursday.
• Mastercard (MA: 394.91 +0.51%) – Cramer hopes this will give us an idea about the number of transactions going on in the marketplace.

Friday
• Wyerhauser’s (WY: 20.56 +0.88%) – Cramer is watching this report to get some insights into the new housing and land market.

Cramer has been bullish on Skyworks Solutions for over a year and has seen to stock rise 208% since his initial buy recommendation. The make of smartphone power amplifiers recently reported strong quarterly results that exceeded Wall Street’s consensus estimates by $.02. The company also increased their guidance numbers, but the stock price continues to fall.

In an interview with Mr. Cramer, Skyworks CEO David Aldrich opined that we are still in the early stages of mobile internet adoption. He believes that Skyworks is delivering better margins than most of their competitors and sees tremendous growth opportunities ahead for leveraging the technology developed for smartphones. This technology can be utilized in various products like medical devices, satellites, etc.

Cramer is definitely still bullish on the mobile internet sector and Skyworks in particular. He is looking for the stock to move much higher.

Here is a review of the performance of Jim Cramer’s key stock picks from Friday’s Mad Money show.

Goldman Sachs
Goldman Sachs (GS: 116.15 +0.15%) stock gained 0.6% today after Cramer forecasted “pain” for the stock in the near term. Cramer believes the financial giant is a great company, but would steer clear of the stock as long President Obama is targeting the Wall Street firm.

Healthcare stocks
Humana (HUM: 85.15 -1.18%) fell 2.8% after Cramer put the healthcare stock, along with United Health Group (UNH: 52.14 +0.21%) and RehabCare Group (RHB: 0.00 N/A), on the sell block. Cramer acknowledged that the easy money has already been made in these stocks after the huge rallies off their 2009-lows.

Apple
Apple’s stock jumped 2.7% ahead of their quarterly earnings report. Jim Cramer advised investors to start selling the stock now ahead of Wednesday’s release of their much-anticipated tablet pc.

After the close, Apple’s stock was down slightly despite reported blockbuster earnings with revenues jumping 32% over last year.

Cramer’s Lightning Round stock picks:

• Linn Energy(LINE: 36.43 -0.87%) dropped 1.9% – Although Cramer has recommended this stock in the past, he doesn’t recommend buying after the stock’s big rally.

• Huntington Bancshares (HBAN: 6.05 +2.02%) gained 2.4% – Cramer advised investors to look at HBAN since the stock is “roaring”.

• Webster Financial (WBS: 23.17 +1.36%) jumped 6.6% – Cramer prefers this bank stock as they have few bad loans on their books.

Here is a review of the performance of Jim Cramer’s key stock picks from Tuesday’s Mad Money show.

Security Stocks
American Science & Engineering (ASEI: 68.84 -1.12%) stock soared 5.8% after Cramer discussed Homeland Security as one of his key investing themes for 2010. ASEI manufactures X-ray equipment for the U.S. government. Cramer sees tremendous potential in ASEI’s products and believes the company has the opportunity to grow their current revenue levels by 10x.

Cramer also highlighted OSI Systems (OSIS: 54.72 +0.51%) as another potential play on Homeland Security. OSIS’s shares closed up 2.6%.

Ford Motor (F: 12.84 -0.31%)
Ford’s stock jumped 3.7% following yesterday’s report that vehicle sales increase 33% in December. While General Motors remained the leader in overall vehicle sales, Cramer warned GM that they had better watch out for Ford which is quickly closing the gap.

Nice Systems (NICE: 35.21 -0.59%)
Shares in Israeli security firm Nice Systems gained 4.5% after Jim Cramer advised investors that the stock represented a great buying opportunity. At its current valuation multiple of only 18x earnings, Cramer believes the stock is a great value.

Cramer’s Lightning Round stock picks:

• Microsoft(MSFT: 30.66 +1.02%) dropped 0.6% – Despite Cramer offering a $35 price target on the stock that currently trades for less than $31.

• Pepsico [[PEP] fell 1.0% – Despite Cramer advising investors to buy the stock “aggressively”.

• Dow Chemical (DOW: 33.95 +0.27%) rose 1.8% – While Cramer believes they overpaid to acquire Rohm & Haas, he believes the company deserves credit for their execution since.

Here is a review of the performance of Jim Cramer’s key stock picks from Monday’s Mad Money show.

Westport Innovations (WPRT: 40.27 +0.73%)
Westport Innovations shares soared 8.6% fueled by the “Cramer Effect”. Cramer advised investors that the best way to play natural gas is to invest in a company that is developing technologies to utilize natural gas. Westport Innovations fits that bill and Cramer feels the company has tremendous potential given their low market penetration. Currently, only 15% of WPRT’s sales come from North America. Increasing adoption of natural gas in the U.S. could push this stock much higher. “The underlying long-term story here could be incredible,” said Cramer.

Baker Hughes (BHI: 49.91 -2.19%)
Baker Hughes jumped 5.9% after Cramer warned that the global economic recovery would lead to increased oil consumption. This will lead to much higher oil prices and potentially even gas shortages. Obviously this would be great news of Baker Hughes as well as other major oil companies such as Marathon Oil (MRO: 32.69 -1.42%), Chevron (CVX: 106.76 -0.07%) and Weatherford International (WFT: 17.90 +0.62%).

Boeing (BA: 75.46 +0.94%)
Shares in Boeing gained 3.3% on Tuesday after Cramer remarked that “2010 will be the year for Boeing”.

Cramer’s Lightning Round stock picks:

• Akamai Technologies (AKAM: 34.44 +2.35%) gained 3.0% – Cramer called Akamai a “high quality play on the internet tsunami.”

• Citigroup (C: 34.23 +3.51%) jumped 3.8% – While not without risk, Cramer likes the stock and told investors that Citi is a “speculative situation that we like very much.”

• Apple (AAPL: 476.68 +1.67%) inched up 0.2% – Cramer remains Apple’s biggest fan and told investors that he stands by his $300 price target and believes AAPL could go even higher.