Profilactic: centralize your social sites
Your Profilactic profile also has links to the specific social sites you use, so your friends can get quick access to your Dugg stories at Digg.com for instance. The mashup section can be searched or filtered by social site.
Social-site aggregation is a welcome concept as the number of sites we join seems to increase on a daily basis (private betas anyone?). Being able to go to one profile to view Twitter posts, Dugg stories, Flickr photos, and blog posts can make your web surfing more efficient.