The best replacement for aweber is getresponse.

The best alternatives to aweber are rated as following:
★★★★★  getresponse
★★★★★  mailchimp
★★★★  constant contact
★★★★  icontact
★★  infusionsoft
★★  gvo
★  mad mimi
★  1shoppingcart
★  feedburner
★  campaign monitor
★  trafficwave
★  sendpepper
  vertical response
  feedblitz
  office autopilot
  get response
  verticalresponse
  phplist
  fanbridge
  interspire

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

Other search terms related to aweber and their ratings are:
★★★★★ clickbank
★★★ gotowebinar
1shoppingcart
You have in mind a companion for aweber and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of aweber in all years. Click on graph for more.
aweber
getresponse
mailchimp