For those of you using Blogger, looks like there's a new free comment system (similar to Reblogger). It's called BlogBack -- and it looks like you can even customize the colors (unlike Reblogger). Just thought I'd let ya' know...the coding looks rather simple!
*your IP is matched when you comment -- and I reserve the right to edit/delete any comments I do not feel are "appropriate" for my blog and/or would not want said in the presence of guests in my own home