The best replacement for google groups is yahoo groups.

The best alternatives to google groups are rated as following:
★★★★★  yahoo groups
★★★  www.bigtent.com
★★  facebook groups
★  google plus
★  groups for business
★  google sites
★  google wave
★  mailman
★  listserv
  google+ communities
  usenet

Your alternative for google groups is not listed? Suggest!


No companions for google groups have been suggested so far.
You have in mind a companion for google groups and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of google groups in all years. Click on graph for more.
google groups
yahoo groups
www.bigtent.com