The best replacement for peerblock is peerguardian.

The best alternatives to peerblock are rated as following:
★★★★★  peerguardian
★★★  tor
★★★  vpn
★★  proxy
★★  bot revolt
★  btguard
★  protowall
★  peerguardian 2
★  ipfilter
★  peerguardian better
★  pg2
  peer guardian
  guardian

Your alternative for peerblock is not listed? Suggest!
Speaking about peerblock, one probably shouldn't forget about vuze.

Other search terms related to peerblock and their ratings are:
★★★★★ vuze
★★★ btguard
★★ bittorrent
★★ utorrent
You have in mind a companion for peerblock and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of peerblock in all years. Click on graph for more.
peerblock
peerguardian
tor