We're tired of bubbles, right? Anyone 30 or older has lived through two big ones so far, with a brief period of prosperity separating the decimation of dot-com largesse and mortgage-fueled paper wealth. It could take until 2014 for the jobs lost to be replenished, and there's little reason for optimism.

So, with the economy in the tank, we can focus elsewhere -- maybe on saving the planet. If we can't put green in our wallets, maybe we can add some to our lifestyles. Or, you could do both. Green technology could be the next boom in the United States, even if we do lag some parts of the world, and investing in clean solutions is really nothing other than investing in the next big thing. Even if you don't give a damn about climate change (or don't think it exists at all), the green market could likely become your employer -- or trigger the economic growth that will create your next job.

Some signs are visible already.

MOST NOTEWORTHY: IberiaBank, Dynamic Materials and Barr Pharmaceuticals were today's noteworthy upgrades:

• Keefe Bruyette upgraded shares of IberiaBank (NASDAQ: IBKC) to Market Perform from Underperform after the company announced that Pulaski has assumed the insured deposits of ANB Financial of Bentonville, Arkansas.
  
• KeyBanc upgraded Dynamic Materials (NASDAQ: BOOM) to Buy from Hold citing stability in base business, valuation, and the added benefit associated with a European competitor being acquired.
  
• Cowen raised Barr Pharma (NYSE: BRL) to Outperform from Neutral citing the recent pullback.

OTHER UPGRADES:

• Goldman added McGraw-Hill (NASDAQ: MHP) to its Conviction Buy List.
  
• RBC Capital raised RadioShack (NYSE: RSH) to Sector Perform from Underperform.
  
• Sirius Satellite (NASDAQ: SIRI) was upgraded at Merrill Lynch to Neutral from Sell.

MOST NOTEWORTHY: Dynamic Materials, Allergan and Sun Micro were among today's noteworthy downgrades:

• Dynamic Materials (NASDAQ: BOOM) was downgraded to Neutral from Overweight at J.P. Morgan following the Q1 report based on margin risk from steel costs and availability.
  
• Allergan (NYSE: AGN) was downgraded to Hold from Buy at Jefferies ahead of the Q1 report on May 7 based on potential deceleration in Botox and breast implants, which could result in multiple contractions.
• Sun Microsystems (NASDAQ: JAVA) was downgraded to Peer Perform from Outperform at Bear, citing the disappointing earnings report for the downgrade.

OTHER DOWNGRADES:

• ManTech (NASDAQ: MANT) was downgraded to Neutral from Outperform at Cowen based on valuation and expectations for decelerating growth in 2H08.
  
• Silver State Bancorp (NASDAQ: SSBX) was downgraded to Sell from Hold at Sandler O'Neil.

Update: See the latest posts about stocks to buy from BloggingStocks.

After nailing the top in Apple (NASDAQ: AAPL) and warning investors this would be a painful year, I've been getting hundreds of emails from people asking me what to do next? As if suddenly after two correct predictions, I'm Nostradamus or David Blaine!

Make no mistake, I'm neither a forecaster nor a magician, I'm just a trader who bases his decisions around these key elements: a distrust of everyone and every company on Wall Street (made easier by the likes of MBIA (NYSE: MBI), E*Trade (NASDAQ: ETFC) and Countrywide Financial (NYSE: CFC); a respect, bordering on religion, for charts and a quick trigger finger if the charts turn against me. I know people want longer term predictions, but I believe those to be 100% guessing games and potentially hazard to your investment health. Pregnant women should avoid them at all costs. Just kidding, it's fine for some people, but I like to make my predictions and cash out, so I can enjoy stress-free weekends if you catch my drift.

So, here's what I see right now: two weeks in and we're already halfway to my 10%-down market prediction, and Apple is down 15% (take that you stereotypical cheerleaders, go date some football players)! The markets are definitely rolling over, and while it's usually a long, drawn-out process, the charts seem to have little concern for what's normal as all the major indices have formed perfect head-and-shoulders patterns (a very bearish sign) and investors are rightfully freaking out.

Where can you find the "Wall Street of the West?" In Colorado, of course -- specifically, Denver's 17th Street financial district.

Colorado's economy has come a long way from its foundation on trapping and mining. Denver's location, equidistant between Los Angeles and Chicago, between Seattle and New Orleans, has helped the Centennial State become the economic center of Rocky Mountain states -- even Denver's time zone and elevation help it keep in touch with the rest of the world. It's no wonder there's a large federal government presence in the state (U.S. Air Force Academy, NORAD, NOAA, Denver Mint, U.S. Geological Survey).

Companies such as Lockheed-Martin (NYSE: LMT), Qwest Communications (NYSE: Q), Comcast (NASDAQ: CMCSA), Molson Coors (NYSE: TAP), and Crocs (NASDAQ: CROX) offer a sense of the diversity of the state's economy. And so do the three companies examined here: Vail Resorts Inc. (NYSE: MTN), Dynamic Materials Corp. (NASDAQ: BOOM), and Newmont Mining Corp. (NYSE: NEM).

MOST NOTEWORTHY: Jones Lang LaSalle, Digital River, Dynamic Materials, Allot Communications and Oxford Industries were today's noteworthy downgrades:

• Wachovia downgraded shares of Jones Lang LaSalle (NYSE: JLL) to Market Perform from Outperform, as they expect the deterioration in the credit markets to lead to fewer closed deals over the next year.
  
• Oppenheimer transitioned coverage of Digital River (NASDAQ: DRIV) and downgraded shares to Neutral from Buy. The broker finds shares fairly valued given the pricing pressure and customer concentration.
  
• Jefferies downgraded shares of Dynamic Materials Corporation (NASDAQ: BOOM) to Hold from Buy on valuation as they believe shares are already pricing in the company's near-term earnings potential.
  
• Allot Communications (NASDAQ: ALLT) was downgraded to Sector Performer from Outperformer at CIBC World Markets after the company pre-announced weaker-than-expected Q3 results.
  
• Oxford Industries (NYSE: OXM) was downgraded to Hold from Buy at Morgan Joseph and to Neutral from Buy at SunTrust following the disappointing Q1 report and guidance.

OTHER DOWNGRADES:

• Piper Jaffray downgraded Target Corporation (NYSE: TGT) to Market Perform from Outperform.
  
• Thornburg Mortgage (NYSE: TMA) was downgraded to Underperform from Market Perform at Keefe Bruyette.
  
• JP Morgan removed Continental Airlines (NYSE: CAL) from its Focus List.
  
• NRG Energy (NYSE: NRG) was downgraded to Neutral from Buy at Calyon.

Defining periods of irrational exuberance can be difficult. However, one method to do so might simply be to look at the headlines. Here are this morning's:

• Crescent Real Estate Equities to be purchased by Morgan Stanley (NYSE: MS) Real Estate
• Payless ShoeSource (NYSE: PSS) to acquire Stride Rite (NYSE: SRR)
  
• Dow Jones & Co. (NYSE: DJ) controlling shareholders, the Bancroft family, meeting to review News Corp (NYSE: NWS) offer
• Sallie Mae making management changes for its take-private transaction
• Alcan Inc. (NYSE: AL) rejects Alcoa Inc.'s (NYSE: AA) $27 billion offer as inadequate
• MGM Mirage (NYSE: MGM) approach by Kirk Kerkorian's Tracinda Corp requires delicate strategy.

The headlines are not too different from the 1980's LBO boom when virtually every headline was associated with a hostile buyout of some sort. Are we approaching the end of the buyout binge? Most likely not. These periods can last for years.

This buyout boom has been fueled by a number of factors. The most important factor has been undervalued stocks, which, in many cases, still remains. In the post tech-telecom bubble of the 1990s, investors went into a cocoon while U.S. company management continued to grow earnings and increase returns on investment.

What will end this buyout boom? My bet is a massive bull market which pushes valuations off the radar screen of private equity.