While looking for good Open Source WYSIWYG editor for my blogging software I came across this post, It led me to WYMEditor which was ultimately what I chose to integrate. For another comparison check out Genii's List of WYSIWYG editors.
I'm one of the people behind Plancast.com. Our goal is to make it easy for you to share your plans. Maybe you read about us on Techcrunch or ReadWriteWeb?
About me: About.me
My Plans: Plancast.com
My Notes: Noopsi.com
My Tweets: Twitter.com
My Code: Github.com
My Resume: LinkedIn.com
My Facebook: Facebook.com
My Google: Google.com