The niche is definitely a "niche". Its about a version control software. the PR is 6. You are right about donations, because I do not want regular / loyal users pissed off. The same goes for too much advertising also. I cant have intrusive advertising also. --Ace
PR6 should return you quite well with links sales...and they are unintrusive to your users. Also, consider advertising within your forums newsletter if you have one.