Google has officially changed the way their specialized Blog Search service indexes its content. Instead of using the previously accepted method of scouring RSS feeds, the engine now indexes actual blog content. The end result is a much more accurate, more in-depth search engine. While there are still a few bugs to be worked out — some bloggers are complaining that blogroll listings are giving them “false positives — the update generally makes “searching the blogosphere” a more rewarding experience.

Despite what many bloggers might have you believe, not everyone is a fan of Internet advertising. According to an interview conducted by Reuters, Wall Street Journal managing editor Robert Thomson just doesn’t see the appeal of ads of the digital variety. According to Thomson, advertising tends to stand out more on the printed page than it does on a computer screen. He also states that most people are physically doing less while they read the newspaper, thereby making the ad more noticeable to the reader. “The only multi-tasking that you can do while reading a newspaper is drink a cup of coffee,” he told the news service. “Online… the link between the reader and the ad is more transient.”

Elsewhere, it seems as if photo favorite Flickr is itching to join the world of “video via camera phone.” Thanks to the latest update, Flickr Mobile users will be able to load, then play back, a variety of user-generated video clips. Unlike services like Qik that encourage live streaming, Flickr users are limited to ninety second clips. At press time, the new Flickr Mobile is only available for the iPhone. Support for other Webkit-based browsers and Opera Mobile will be available soon.

Next, we have UserVoice. UserVoice is an interesting little tool that allows you to set up an “answering machine” service directly on your site. Instead of sending an email, posting on a forum, or even writing in a guestbook, users can actually leave short voice messages to you. Not only does this give you yet another way to interact with your audience, it also lets their collective voices be heard … literally. While the base UserVoice service is free, several “for pay” options are also available for netowrk and enterprise customers..

And to finish out the week: In the world of online business, there is a fine line between “thinking outside the box” and downright stupidity. Standing directly on that line is Bopaboo, the new music that claims to sell “used” mp3 files for a mere $.25 a piece. The underlying problem is perception. As far as most users (and lawyers) are concerned, 98% of Bopaboo’s “merchandise” was at one point taken illegally from either peer-to-peer networks or BitTorrent. While some might applaud the company for starting what amounts to an auditory black market, most won’t touch this site with a ten foot pole. Saving $.75 on a song isn’t necessarily worth the RIAA lawsuit that is bound to follow. Bopaboo is up and running for the time being now.