I finally get a software that does mostly what I want: get rss feeds regurlarly and show them to me on a web page. It's mostly what's Bloglines, but in a free software and personal way. I always dislike having to depend on external services (in fact, I don't even trust my own machines, replicating everything), that's why I used Jabber, WordPress and have create my own version of del.icio.us instead of the equivalent web services. However, sharing and aggregation services like Technorati are very welcome.