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Free Listservers
The word "listserv" is used as a generic term for any email-based mailing list.
- Google Groups
Free listserv from Google, includes ability to customize look of html. - PHP List
Open-source php newsletter manager - Yahoo! Groups
Free listserver from Yahoo!, includes shared message archives, photos and photo albums, group event calendars, member polls and shared links - Topica
Free discussion lists - Free Listserver Comparison
Wilsonweb's comparison chart of Topica and Yahoo! Groups
