The SLQ wiki

I went to the site for the SLQ wiki, joined as an author and posted my comment. I like the idea of being able to do this but I now have various accounts email, wiki, flickr..... I am becoming a little confused as to which logon and password to use and when. But as this is all part of the learning, then I must make more space in my brain not only for the knowledge that I am getting but for the extra passwords too.