Not “forums”. So it shouldn’t be “Top Forums” but “Top Fora”.
Eh, it’s English now. We can bastardize any language we want! 
Never use a Latin word when there is an English word. Plural of forum is forums.
LOL. that is funny =d
Narcissa, the plural of symposium is symposiums, not symposia. When those with an affectation for foreign words resort to foreign language expressions they reveal lack of knowledge. Read Fowler.
[forum</a> - Definitions from Dictionary.com](<a href=“http://dictionary.reference.com/browse/forum]forum”>FORUM Definition & Usage Examples | Dictionary.com)
Fora is the plural of furum. “Forums” is also listed at the link above, but it’s coined.
imaparasite, Blake says somewhere in Marriage of Heaven and Hell that you must know more than enough to know what is enough.
I knew someone would pull out a dictionary and babble on. I told you to consult Fowler’s Modern English Usage. Yes, both plurals can be used, but one is preferred usage. Some Latin nouns have converted, so to speak, some have not. Some are not even Latin nouns, like factotum. In the case of forum, the proper usage is forums, but fora is also grammatically correct.
In the case of symposium, both usage is fine, Fowler actually says symposia is preferred but a number of other stylists, too numerous to mention, maintain symposiums.
The matter is also heavily complicated by considerations of topic, prior use of foreign expressions, neologisms, etc, etc. As an immigrant who studied English grammar and usage very seriously, I find Americans don’t know a thing about English. To digress, almost no one knows the difference between mutual and common, and so on.
You’re right, ramaswami. But we should still change it to fora to sound smart 
[forums</a> - Google Search](<a href=“forums]forums - Google Search”>forums - Google Search)
83 million results.
[fora</a> - Google Search](<a href=“fora]fora - Google Search”>fora - Google Search)
Only 2.6 million results.
[Linguistic</a> prescription - Wikipedia, the free encyclopedia](<a href=“http://en.wikipedia.org/wiki/Prescriptive]Linguistic”>Linguistic prescription - Wikipedia)
[PRESCRIPTIVE</a> AND DESCRIPTIVE GRAMMAR AND USAGE. The Columbia Guide to Standard American English. 1993](<a href=“Homework Help and Textbook Solutions | bartleby”>Descriptive Essay | Bartleby)
[P.I.T.E</a>. - Fora vs Forums](<a href=“Login — Pain in the English”>Fora vs Forums)
[forum</a> - Wiktionary](<a href=“http://en.wiktionary.org/wiki/forum]forum”>forum - Wiktionary, the free dictionary)
And this is probably quite enough.