I just doit; now 10 minutes I have deployes my link exchange community application; in this moment it will be avaible only for my site visitors, no SEO for this, but you can view and test the process of link exchange; Free, simple, and lovely to use, this application comes instead of paba project that was lost because, probably, the involved number of persons/visitors/editors was to small - it was concepted for a little community; here the community will be contain anyone who wants to get into it. Enjoy it and let my know about functinalities that aren't wrking or you willl like to see there,

When optimizing a blog, porbably this should be the 1st step to do: claiming your blog into technorati. This is simple, you should place your blog details there and place an article on your site, that will contain a code. Requered for validation.

Why do I say that there is the 1st step in blog optimizing: this service has a lot of tools specialized in blog analization. For example, this blog get an rank, and an autority (this will be in time, of course). Also the users can place reviews about my blog, this should be important....

Another nice user option is that you can see the last blog posts there. This is great when you use to read many blogs. I use instead of this, the iGoogle interface, is somehow the same option and there. And probably there ar and other nice options that should be founded!