Astute observers will have noticed that the little map in the column to the right recently lost all its little red dots, as every year or so the clustr map resets itself. Each visitor to this blog makes their little mark, or adds to the size of one of the dots already in place. People (or machines pretending to be people) have called in here from all over the place - remarkable really. Most surf in and out, some stay for a while, the bizarre few (you know who you are), seem to come back repeatedly; one or two even leave comments. One development over the last year has been the way in which more interactive social networks like Facebook have taken over from Blogs - if the level of responses to photos and posts is anything to go by.