Well, I guess the first thread here should be the one with the listing of all the blogs with a little description.
My blog is http://shiv-saroj.blogspot.com/
Its focused on the HRMS, OTL and Oracle Applications Framework. Will be adding some stuff on SOA and Apps integration soon.
You can see my blog on my profile page. But, here it is anyway: http://awads.net/ with an official description: News, views, tips and tricks on Oracle, ColdFusion and other fun stuff.
There goes mine - http://dbathoughts.blogspot.com; Started very recently. Right now writing about 11g features; I will be writing more on oracle database and may be would pick up on some other stuff on oracle technology stack in future. I will be posting links to my blogs on my oraclecommunity blog page. For those who are interested in tracking, can subscribe to my blog.
On my Archbeat blog I focus on what's going within the community of architects that exists within Oracle community at large, and about issues relevant to architects.
If you're an architect and you have a blog, please send me your url. Same goes if you use Twitter. (I do: @brhubart)