If you'd like to offer your services as a beta read, please include your details in a reply to this post (don't reply to a reply). I shall then put up a link to this post on the right of the community, along with the other links, and that way anyone looking for a beta will know where to look - also, it means you can edit or delete your post should you need to, and others can add their details when they wish.
Include the following info as a minimum (if you want to add more, that's up to you):
E-mail or other contact info
Fandoms (including original) you're willing to beta
Specifics - whether you're offering grammar/spelling type services or fandom specific knowledge without the grammar or both
Limitation - things you wouldn't want to beta (pairings or ratings or whatever)