There have been characters in the comic world that represents minorities, but most of them are those back-up characters that you don't really notice in the comics.
The first 'proud to say' is about the comic world, as the two biggest companies Marvel and DC has just made homosexuals proud as both of the companies took a big step forward.
DC had a come out of a gay character in their comic earth2 #2. I which the classic green lantern turned out to be gay!
Marvel on the other hand has produced a gay wedding issue in Astonishing X-men #51, which features the wedding of Northstar and Kyle, even though they are not the biggest stars in the x-men franchise, but this issue was being taken very seriously by the company with 2 variant covers available.
Both issues were well made and fascinating, and they are having 2nd printings already, therefore if you miss either one, do go to your local comic book store to grab them when the 2nd printing arrives!