Although I'm little more than a newbie on the site, I've been invited to participate on the WikiTree blog in two ways: an interview about my genealogy experience, and a blog post. You can find these posts at:
Meet Our Members ~ Pamela D. Lloyd, posted 6 January 2014
Pamela’s Perspective ~ A Member’s Thoughts on WikiTree, posted 4 December 2013
WikiTree has been tremendously welcoming and a great way to meet other genealogists. Plus, because it's run collaboratively by genealogists, for genealogists, it's free and promises to stay that way.