Here are a few highlights from this past week's earnings coverage from BloggingStocks:

• American International Group Inc. (NYSE: AIG) posted a big loss and warned of more to come.
• CBS Corp. (NYSE: CBS) beat expectations even though its fourth-quarter profit fell.
• DreamWorks Animation Inc. (NYSE: DWA) 2007 earnings and revenue soared, lifted by Shrek the Third.
• HJ Heinz Co. (NYSE: HNZ) posted solid third-quarter earnings and revenue.
• Koppers Holdings Inc. (NYSE: KOP) beat fourth-quarter expectations and approved a share buyback plan.
• Netflix Inc. (NASDAQ: NFLX) raised its first-quarter and full-year guidance on subscriber growth.
• Nortel Networks Corp. (NYSE: NT) missed expectations due to rising operating costs.
• Origin Agritech Ltd. (NASDAQ: SEED) 2007 earnings sank, missing analysts' expectations.
• Salesforce.com Inc. (NYSE: CRM) beat fourth-quarter estimates and offered revised guidance.
• Sirius Satellite Radio Inc. (NASDAQ: SIRI) narrowed its loss due to a surge in subscribers.
• Swiss Reinsurance Co. (OTC: SWCEY) quarterly EPS plunged but 2007 decline was less than expected.
• Viacom Inc. (NYSE: VIA) reported strong fourth-quarter and full-year results.

Also, analysts predict that bank losses will be the highest in 20 years. Timothy Sykes recommends investors not become starstruck by superstar companies such as Apple Inc. (NASDAQ: AAPL) and Google Inc. (NASDAQ: GOOG).

Upcoming results to watch for include Staples, Inc. (NASDAQ: SPLS), Costco Wholesale (NASDAQ: COST), and Blockbuster Inc. (NYSE: BBI).

Visit AOL Money & Finance for more earnings coverage.

MOST NOTEWORTHY: Cognos, MSC Industrial Direct, Fastenal Company, Royal Kpn and Koppers Holdings were today's noteworthy downgrades:

• Cognos (NASDAQ: COGN) was downgraded to Neutral from Buy at Goldman and at Broadpoint following the acquisition by IBM (NYSE: IBM).
  
• Baird downgraded MSC Industrial Direct (NYSE: MSM) and Fastenal Company (NASDAQ: FAST) to Neutral from Outperform, as they expect the difficult U.S. manufacturing environment to constrain shares.
  
• Credit Suisse lowered its rating on Royal Kpn (NYSE: KPN) to Neutral from Outperform based on Getronics integration risk and slowing mobile earnings momentum.
  
• Koppers Holdings (NYSE: KOP) was downgraded to Buy from Aggressive Buy at KeyBanc based on valuation and concerns on 1H08 comps.

OTHER DOWNGRADES:

• Goldman removed Foster Wheeler (NASDAQ: FWLT) from its Conviction Buy List.
  
• Gabelli downgraded shares of Constellation Brands (NYSE: STZ) to Sell from Buy.
  
• Stifel lowered its rating on Amerigroup (NYSE: AGP) to Hold from Buy.