Online media giant AOL (AOL) has bought The Huffington Post for $315 million. It will pay $300 million in cash, the rest in stock for the news website.

When The Huffington Post raised money just over a year ago, the value of the site was rumored to be $125 million. It has 25 million unique users a month, according to Comscore figures. AOL has just over 90 million. The combined user bases could push the total ahead of MSN, the Microsoft (MSFT) portal, and perhaps Yahoo! (YHOO).

AOL, the parent company of BloggingStocks, said in a release that Arianna Huffington would lead the newly formed Huffington Post Media Group, which will integrate all the content from The Huffington Post and AOL sites, from politics and finance to Moviefone and Mapquest.

This post is part of a special report, Top Picks for 2010, the 27th annual survey in which TheStockAdvisors.com asks the nation's leading advisors for their single favorite stock for the new year. See all 80 stocks listed here.

"AOL (AOL), formerly America Online, is one of the most storied -- and bloodied -- names in the Internet sector," says Bernie Schaeffer.

Referring to skepticism surrounding its early December spin-off from Time Warner, the editor of Schaeffer's Investment Research chooses AOL as his top pick for 2010, noting, "From a contrarian perspective, the current pessimism could have positive implications."

Sergey Brin claims that Google (NASDAQ: GOOG) didn't try to buy Twitter. The co-founder of the search engine giant made a surprise appearance at Web 2.0 Thursday, where organizer John Battelle asked point blank if he'd made a move for the popular microblogging website.

Of course, Brin revealed his fluency in corporate speak, continuing, "But if companies approach us we definitely consider any opportunities to buy," according to Reuters. A denial doesn't always mean a denial, especially if there were agreements to keep negotiations confidential.

Heading into the week's end, we find that the ground under Wall Street has shifted a little. For at least one week this year, investors have looked at the glass as half full, lending some support to a story I posted earlier in the week: Is the stock market spring loaded? Could it move 3,000 points higher now?

Given that there was plenty of bad news, and some of the good news was suspect, I think investors simply decided "it is better to light one small candle than curse the darkness."

Tim Armstrong is the new chief executive of AOL, a division of Time Warner (NYSE: TWX) and parent of BloggingStocks. Armstrong, a senior VP at Google (you can read the press release here) replaces Randy Falco, who joined AOL in November, 2006. Also leaving AOL is President Ron Grant.

Time Warner shares initially traded down in after hours trading following the announcement, but were leveling off by 6:30. The stock closed at $8.32 today, a gain of 5%, and at 7pm was at $8.31.