With 24 hours to think about it, the sale of TechCrunch to AOL strikes me as a head-scratcher, even though TechCrunch founder Michael Arrington says it make complete sense. Of all the potential suitors, AOL would not have been on my list. Instead, it would have been headed by a digital publishers such as CNet or one of the large newspaper publishers such as the New York Times or Washington Post looking for a deeper digital presence.

The rise of TechCrunch into one of the technology industry’s most influential players is an amazing story. Started by Arrington, it was just one of many technology blogs battling for attention at a time when the technology market was just starting to re-emerge after the dot-com boom went bust. TechCrunch wasn’t an immediate smash-hit but Arrington’s energy and connections started to make it a must-read. In time, TechCrunch expanded with other Web sites and conferences, while Arrington became an active player in the Silicon Valley ecosystem.

While Robert Scoble suggests TechCrunch’s sales is the end of an era in tech blogging, it’s far more accurate to suggest it’s the end of an era for TechCrunch. Tech blogging will continue with existing players getting stronger, and new players emerging.

Meanwhile, TechCrunch will, no doubt, become a different creature. Sure, Arrington is going to stay involved with TechCrunch but the reality is it’s difficult, if not impossible, to maintain the same kind of involvement when you’re an employee rather than an entrepreneur putting your heart and soul into growing a business. While Arrington will be a good AOL employee for awhile, he’s an entrepreneur who will be lured by other activities and interests.

In time, TechCrunch’s influence will change as well. As much as TechCrunch has a large following, Arrington is the driving force behind what makes TechCrunch different from GigaOm, VentureBeat, Mashable and ReadWriteWeb. He is the TechCrunch brand.

Rather than being the end of an era for tech blogging, the landscape will start to shift and evolve. TechCrunch will likely remain a popular destination but the tech blogging landscape could become a more interesting place now that TechCrunch is part of AOL. With change comes opportunity – maybe even a new Arrington-like blogger with big dreams, great writing skills and a knack for self-promotion.

Not everyone may be a fan of Arrington but you have to give him huge credit for building TechCrunch into an online publishing powerhouse. As TechCrunch moves forward with a new owner, it will interesting to see how TechCrunch changes and, as important, how readers view the new TechCrunch.