If you built more social media accounts that you can handle its definitely time to trim some of them and cut down some altogether. There is no point in having more that one network that does the same thing, it takes away your focus and spreads you message thin.
LinkedIn can be an invaluable too for effectively marketing you and your organization, but as with other social media networking sites, you are faced with a dilemma. Is it better to have a quality network or a large network? The quantity vs. quality debate is not new, but do you really need to pick a side?
Members of social networking sites like Facebook, MySpace, and certain blogging communities are not the same as audiences of television or radio. Yes, the person on Facebook probably owns a television as well, but their expectations and gratifications for using television or Facebook are going to be wildly different.