We have had thread on the Universal Church many times...we also have those here that seem to be opposed to certain expressions of the local church. Here is an article by Matt Chandler dealing with this issue from his prospective.
http://www.churchleaders.com/pastors/pastor-articles/151320-is-church-membership-biblical.html
http://www.churchleaders.com/pastors/pastor-articles/151320-is-church-membership-biblical.html