1. A method of sharing computer user experiences, including: communicating with a registration server to register a user, for automatic client-side collection of computer usage experiences for future sharing, wherein the computer usage experiences include one or more of browsing URLs or visiting a location with a location-aware device that records the visited location; accessing one or more of the user's messaging buddy lists and selecting one or more buddies with whom to share the automatically collected computer usage experiences; defining categories of computer usage experiences to be shared with particular selected buddies; tracking automatically on the client-side at least a portion of the user's computer usage experiences and reporting the user's computer usage experiences to a tracking server to be published to the particular buddies in accordance with their defined categories of sharing.