^This.
Like it or not, copyright infringement is illegal - and DMCA is being taken seriously. They're even considering upping the ante to federal felonies. Serious stuff.
I've no idea, but think you'll likely find that the game emulator may be legal (if not violating reverse-engineering terms) it facilitates use of illegal roms in general. That - or thinking to that effect - is going to be at the heart of this issue.
There's already a link to more info above on this.
As for our site - AndroidForums.com will have no part in illegal activities, and the site rules you agreed to when you signed up specifically prohibit linking warez - and if you aren't the Market and your name isn't Google, Amazon, or the dev, then links you create here are exactly that - warez.
Please don't try to think you can be more clever than Google's lawyers on this at our site - repeated attempts will lead to permanent bans.