My lovely friend Monica has a fantastic series of posts on church unity.
So far, she’s looked at the problem posed by denominations, and the question of what sort of unity the Bible calls us to have. Next up is an historical look at the sort of unity the early Church had. (Excited!) They are really good and you should definitely check them out.
Actually, if you don’t read Monica’s blog Carpe Veritatem, you really should start doing that too. She is a very clear and considered thinker. She loves the Catholic Church but totally has a soft spot for Protestants too. Plus, she’s a massive bible geek. (And I say that with the warmest affection and just a touch of envy!)
Go forth and enjoy!