Question regarding selling a BlackBerry related Domain

Hi guys, this is my very first post but I'm a long-time reader. A few months ago, I was looking to create a new blog, that focused on all that is BlackBerry. Unfortunately, I no longer have time to go in this direction and don't know what to do with them except sell them so someone else can use them. I purchased the following domains;

blackberryenthusiast.com
blackberryenthusiast.net
blackberryenthusiast.biz
blackberryenthusiast.us
blackberryenthusiast.info
blackberryenthusiast.org

In addition to purchasing these domains, I also have a Twitter handle @bbenthusiast that I'd give to who I sold the domains to. Do any of you guys have any suggestions or recommendations?