Our personal information on the web is scattered and fragmented between several web sites. Just take into account for example your social networking site (e.g. Facebook, Google +, Tweeter), blog (e.g. Tweeter, Wordpress, Blogger), photo sites (Picassa, Flickr), etc. We already talked about a few aggregation and visualization tools:
Here's one more. Memolane:
"Capture photos, videos, music, tweets, posts, and much more.
View and share your entire life online.
Create stories of your best memories together with your friends.
Explore and search your life and the lives of your friends online. "