The LinkedIn professional networking group has a special interest group of members who are also bloggers. They recently initiated an idea to ‘boost’ each others blogs by giving them a boost on a specific day.
I missed the second one because I was rather busy at the time, and also the blog didn’t look that relevant to the type of readers I have.
In complete contrast the third one is Philippe Borremans’ Conversationsblog which is one I actually read anyway! What’s more I was already going to link to one of the many PR blogs that reference the Euroblog conference. I’d also recommend that you took a look at the posts by Philip Young and Elizabeth Albrycht.