I think I will develop this into a forum for appraisals, I'm trying to figure out what (aside from domain names) can be fairly quickly appraised online, possibly through video and Google maps for Real Estate.
In any case this one appears grammatically awkward as appraisal(s), appraiser(s) and even appraising might have all been more grammatically accurate, I think.
However, those others were not available and I really liked this one anyway.
Besides Appraise is a verb and I tend to like verb + noun when they make at least some semblance of sense.
So please appraise: AppraiseForum.com