Again, Rollyo, wasn't one of my personal favourites. I didn't find it particularly easy to work out how to get started and would have no idea why I would use this site again. It wasn't easy to navigate and wasn't eye-catching or attractive (which is what appeals to me!)
Professionally, with a stretch of my imagination, groups of similar sites may be useful for sourcing information but I would personally prefer to use del.icio.us although I realise the two sites are fundamentally different.
Despite my reservations, I made a searchroll of my own...
