Pet bug......SHELFARI

I wonder if i'll ever stop writting about social cataloguing sites (1, 2, 3). But i've just learnt that shelfari has added groups for its site. Wow. Brilliant. 8 months behind librarything, and they at least created a few groups themselves. Has shelfari done that? Don't be silly, thats what the users are there to do (i there world anyway).......