A little more context would help, but guessing that you’re talking about new media since you mentioned information overload;
Your identity is who you are, where you live and everything you consume be it video, articles, books, or food. Social media has put that data online for all to see and use, but so far it has only caused information overload, as every song that everyone you know creates another entry in your lifestream. The next wave of web-technology should take this data and analyze it to make reccomendations to you, and filter your lifestream. For example, if you bookmark an artist on Pandora, a site could tell you when an Eventful event is made for that artist. You bookmarked it on Pandora, but it was used to filter the Eventful feed.
Consequently I’m building an app that will do just this ;-) it’s a pre-alpha one-man-project so go kick the tires but don’t expect much at this stage; http://www.agglodex.com