Recently Twitter lifted the limit on the size of lists - previously we could only have 500 people in a list, which meant that I had to create 3 different lists as I reached the limit twice. However, I can now collect all of my contacts into one splendid list, which is around the 1,230 mark: UK Librarians on Twitter.It took forever - I had to call up lists 2&3 and go through every person individually to take them off one list and put them on another - I tried options, but doing it manually seemed best, if brain numbingly tedious.
Now, I should say a few things about it - it's my list, primarily designed to make my life easier, and I've taken a very wide definition of both 'UK' and 'librarian', but in the main I've based putting someone into a list on their own biography, so if someone hasn't mentioned that they're based in the UK and/or not mentioned that they are involved in the library profession, they probably won't be on my list because I didn't realise. Consequently this list is not meant to be comprehensive in any way.
I'm also sure that there are errors in it, but that's going to happen when you're playing around with that sort of number. If you're on my list and you're not UK or regard yourself as a librarian, it's no big deal because as I said, it's my list, and Twitter lists are fairly fluid at the best of times. However, if you really don't want to be on it, just DM me and I can remove you quickly.
If you are on the list (cue Dad's Army joke) and your account is protected, it's not an issue, because even if other people look at the list they won't see your tweets unless you have allowed them access. However again, if that's an issue, I can take you off the list, no problem.
If you're not on the list it doesn't mean anything at all; just that I haven't added you for a variety of reasons. Again, if you want to be on it, let me know, and I'll add you.
If you want to view tweets from the list you can just look at the page, and Twitter also has an option that allows you to subscribe to it. This means that you can see all the unprotected tweets, but that you don't have to follow all of the people on this list. Hopefully it will be a useful addition, and it's certainly interesting to just get an indication of how many librarians have signed up to Twitter over the years.