There are many websites out there with useful information about photography, and many photographers regularly posting great photos.
Here's some photography-related blogs that I read on a regular basis (via Google Reader). Hopefully you'll find some of the blogs on this list useful.

• A Little News
• aimee claire
• Anna Gay Photography
• Annual Report Photographer David Tejada
• Arlene Bax Photography
• Alex Wise Photography
• Chase Jarvis Blog
• chromasia.com photoblog
• Confessions of a Photographer
• David E Jackson // A Blog
• Del Sol Photography Blog
• Digital Photography School
• DIY Photography
• Flash Frog
• Jasmine Star Photography Blog
• Jessica Claire - Photographer
• Joe McNally's Blog
• Joey L: The Blog
• Lakshal Perera :: Wedding Photographer
• Mark J Reblias Blog
• Ming Thein
• No Cropping Zone
• PixSylated - Syl Arena's blog
• Simply Bloom Photography
• Strobist
• The Online Photographer
• Zack Arias - Atlanta based editorial music photographer

While not specifically photography-related, I thought I'd post this information, as all webmasters and people running websites should be aware of it, as AVG LinkScanner could be causing additional bandwidth usage on your websites, and falsely inflating your website hit counts.
Also, anyone with AVG Anti-Virus Free 8.0 needs to be aware of this behaviour, that it will consume additional download quota as LinkScanner queries every result on a search engine results page, and that it is having a negative impact on websites.