A search with Google, type in the search box "gadget discussion forums" and i found these two useful sites.
www.Amazon.com/tag/gadget/forum
www.forums.planet-gadgets.com
A great way to know the latest on gadgets is to buzz. Gadget buzz can direct you to gadget blogs help you know the latest about all gadgets just by getting onto one single site. Buzz sites are updated every 5 minutes and are the easiest and fastest way to get all the news, all the time.
Some popular physics discussion forums where you can engage in conversations and exchange ideas with other enthusiasts include Physics Forums, Reddit's r/Physics community, and the American Physical Society's Physics and Society Forum.
There are several webpages dedicated to discussing Harley Davidson bikes. For example, webpages such as 'HD Forums', 'Harley riders forum' or HD talking' are well-known forums.
A "newsgroup" in Internet terms refers to the old USENET discussion groups. Their original intention was news/announcement forums on specific topics. They evolved to become discussion forums.
hi, you can visit engadget.com gizmodo.com,futuremania.ning.com e.t.c these are very interesting sites. regards
You can discuss computer hardware on the major discussion forums.
Rupert L. Cortright has written: 'Creative discussion' -- subject(s): Forums (Discussion and debate)
Virus-L and computer virus are discussions forums which focus on computer virus issues
You can find some online information about centric brakes from some automobile discussion forums and automotive sales blogs that will have some information about different types.
Forums
There are several "cigar" related forums and discussion groups online to choose from. If you have a specific question you can ask in the discussion area of this question.
http://hacksforhacks.webs.com/apps/forums/show/2722377-general-discussion
You can get help stopping drinking from alcoholics anonymous and also some various other support groups on the internet that use discussion forums to talk about the problem.