The Beta Reader thread is going to be unscreened comments. If you wish to offer your services please be honest about what your strengths and weaknesses are as a beta reader. Feel free to post stories that you've written/edited (the latter with permission from the person you edited for, please).
We're not assigning beta readers, this thread is a free for all and each writer will be responsible for contacting a beta reader on their own time.
Also, let us know which series you're familiar with. I would hate for you to only know like, VII and VIII and someone who needs a beta for III contacts you :)