If you're feeling good about the market, you're not alone. Take my hand as we go over some of this week's more uplifting headlines.

1. It's a Barnes burner
I wasn't the only one laughing at Barnes & Noble (NYSE: BKS) when the news first broke about the bookseller entering the e-book hardware market. However, after the company made it official on Tuesday, I'm now liking the superstore's chances.

The Nook is available as a $259 pre-order-- matching the entry-level Amazon.com (Nasdaq: AMZN) Kindle -- although it won't hit the market until the end of next month. However, it may not be the bricks-and-mortar killer that I feared.

One of the coolest features is the ability to serve up in-store discounts and promotions the moment a Nook owner steps into one of Barnes & Noble's stores. In other words, it will encourage Nook buyers to make more trips to the local store. Other bibliophiles in the store will catch on, creating a viral growth spurt.

2. The sun will come out tomorrow, Chipotle
Chipotle Mexican Grill (NYSE: CMG) (NYSE: CMG-B) is scoring more points with environmentalists. The burrito chain is adding solar panels to 75 of its restaurants, hoping that clean energy will improve its operations.

Chipotle isn't up for sainthood. One of the factors it considered in picking out the locations for the sun-powered makeover is the availability of local utility rebates. This is, after all, a business. However, the move should help add some eco-friendly polish to a brand that prides itself on a premium quick-service experience.

3. An Apple a quarter keeps the bears away
Can we even call this an earnings surprise anymore? Apple (Nasdaq: AAPL) delivered another analyst-thumping quarterthis week. You have to go back several years to find the last time that Wall Street didn't underestimate the company's bottom line.

Shouldn't the analysts huddle up, recognize their financial modeling shortcomings, and aim higher? The incompetence has to be a hoot to watch for shareholders.

It was still a breathtaking quarter for Apple. Revenue and earnings rose 25% and 44%, respectively. In a recession? Are you kidding me? Naturally, the iPhone is a major part of Apple's success story, but did you know that MacBook unit shipments were up 35% over the past year?

Oh, and then Apple comes back the next day to introduce a refreshed line of computing products. Wake up, analysts.

4. Hasta la Vista, baby
Microsoft (Nasdaq: MSFT) can finally kiss the Vista era goodbye. Windows 7 hit the market yesterday, forcing Apple's marketing department to replace many of its "I'm a Mac, I'm a PC" ads.

The early reviews for Microsoft's new operating system have been favorable. One of the few knocks is that it's a cumbersome upgrade process for Windows XP users, but it's a breeze for the maligned Vista crowd that was looking forward to a new platform the most.

This should also trigger a hardware upgrade cycle, as consumers and companies trade up to more powerful computers with Windows 7 pre-installed.

Wouldn't it be great to see the doughy John Hodgman turn up the heat as the character that bears the brunt of Apple's punishment in those ads? Continued...