I ran across Robert Charles Wilson's Spin right about the time I ran across Charlie Stross' Accelerando–in thinking about it, I suspect I heard about both of them at Making Light. I know that's where I heard about Spin.
Having read the first book, I picked up its sequel, Axis, though not before it was in paperback.
On the one hand, it's not badly done, but on the other…I just can't recommend it.