The changes are the latest efforts by Facebook to expand its offerings and match features made popular by other online social services. Just last month, the site to "like" your friends' content -- a concept most often associated with social aggregation service . Add into that the launch last December of Facebook's Web-wide sign-on system, , and it's easy to see how near-ubiquity could be right around the corner. The company's of an over its only adds to the positive (albeit nearly hampered) momentum.

Recent estimates put Facebook when it comes to social network traffic. Some analyses show Facebook drawing of its nearest competitor, the much more seasoned MySpace. Even the co-founder of MySpace's original parent company is in Facebook's favor.

User: Facebook. Status update: Darn near domination.