The most difficult thing about social networking is management. Having a meaningful presence in all of the various communities is cumbersome and time consuming, let alone creating content that stirs conversation and leaves an impact. Any teenage girl can be a tweet-freak, but can she do it with marketing strategy? Does she fully understand how Twitter works and have the ability to maximize your reach?
Another challenge with social networking is that it's constantly changing. How many times have you been pissed off at FaceBook for changing their layout? You might not know that MySpace is still alive and doing very well in South America. Last.fm has a huge European following, and ReverbNation and SoundCloud are powerful tools for independent musicians.
It's a full time job just keeping up with all of the trends. Spend your time doing what you do and let us develop and manage your online presence.