I think of the books by Charles Stross halting state and rule 34 are both better books and give a better 15 minutes into the future feeling.

Halting state might be a bit dated but rule 34 absolutely holds up.

I think Singularity Skies pales in comparison with the depth and breadth of Accelerando.

Ender's Game and Foundation are timeless classics, and I suspect, Accelerando will eventually become one.