Jornalismo. Socialsoftware. Googlewave. Redes. Twibbon.com - serviço para defender causas colocando imagens nos avatares. The Hub. Review of social aggregators / lifestreaming services. The difficulty in keeping track of one's activity on an increasing number of social media sites (Facebook, Flickr, YouTube, etc.) has, somewhat ironically, spawned a whole new breed of site - the social aggregator (a.k.a. lifestreaming services).
Below is a review of 15 products currently in this space. I've tried to keep the focus on aggregators, rather than services which have more of an emphasis on inputting new content (e.g. microblogging platforms such as Tumblr or Jaiku) although the lines are clearly blurred. Key to success in this area is minimising the work the user has to do to setup their aggregation. Scanning services against specified usernames (rather than adding each service individually) or automatically pulling in friend lists from the services added are both massive timesavers which lower the chances that you'll decide it's not worth the hassle and give up. 1.)