[kwlug-disc] Anyone know of a free web forum equivalent to Google/Yahoo Groups?

[unsolicited]

A yahoo / google groups equivalent in the sense of go there, free 
registration, get on with one's day and use.

Bob Jonkman wrote, On 09/29/2009 9:40 PM:
> Are you looking for something to install, or an existing Web-hosted 
> service?
> 
> --Bob.
> 
> 
> unsolicited wrote:
>> Anyone know of a free web forum equivalent to Google/Yahoo Groups?
>>
>> Yahoo groups appears to have more functionality than Google, but 
>> neither appear to have the concept of 'sub-forum' (sub-groups?).
>>
>> If it were K-W LUG, for example, then there might be forums for 
>> hardware, software, ubuntu, distros, general, mythtv, and so on and so 
>> forth.
>>
>> Anyone have experience, ideas, suggestions?