The 12 most annoying types of Facebookers - CNN.com
http://edition.cnn.com/2009/TECH/08/20/annoying.facebook.updaters/index.html
Love (and annoying)
http://sethgodin.typepad.com/seths_blog/2009/01/love-and-annoyi.html

@d7y @IamSB reminds me of Seth Godin's post about making a product that people love vs making it less annoying: http://bit.ly/44qE