The online universe is still expanding. There were many wonderful mystery blogs going strong when Write On Mystery was set up. Indeed, we couldn’t even go with our first three choices for blog name!
Here is just ONE of the mystery blog lists I came across: http://www.invesp.com/blog-rank/Mystery_Novels#google1
My first real experience with a mystery blog was with the Ladykillers, top Mystery Book Blog 2010. http://www.theladykillers.typepad.com/ This is an impressive blog, with author photos, links to websites, appearances, advance promotion of upcoming blog topics, and guest bloggers. Very nice that you don’t have to be a member to comment. They get several responses to most of their entries.
Another attractive blog, http://mysterysuspence.blogspot.com/2011/07/mystery-crime-fiction-blog-carnival_31.html, has been around since 2009. This one focuses on reviews. They have over 400 members, and interviews with the likes of Jan Burke and L. J. Sellers.
A Canadian contribution to the sub-genre is http://mysterymavencdn.blogspot.com/. They use lots of photos, including latest book cover of the blogger.
The Cozy Mystery List blog comes up often when using Google. It’s a simpler format, focused on the cozy sub-genre of mysteries. http://www.cozy-mystery.com/blog/
Using the theory that we are all one big supportive community, I encourage you to check out these blogs, and find more wonderful ones. Post there if you like, and if appropriate plug Write On Mystery.