Wowwiki updated with Cataclysm raid boss mechanics/abilities.
I've noticed a lot of people asking about how encounters work, mechanics, abilities in a lot of threads around here.
So I combed through wowhead's cataclysm database and put up mostly complete lists for almost every boss (Halfus and Omnitron Defence System were already done, Conclave of Wind is missing).
Maybe not anything new but I couldn't find any precise guides myself, some of the blogs had ability lists but not exact names and exact tooltips and there was a fair bit of misinformation (and if there's any in this you can edit it hurray).
Perhaps some people not in beta will find it interesting.