How do I invite contributors who already have wordpress accounts?

Blogs not going to the right pages on menu.

changing Blogs I follow in the sidebar

How do I change/add my publish to a different facebook page?

Is this new editing thing legitimate?

Export issue

How do I change the number of like gravatars displayed?

Why am I seeing two Blogs on my site?

How Can I Transfer My Existing Domain Name To WordPress?

what is diff between categories and category clouds?