Going out in Frankfurt by chicabonita
On this German webside you can find everything what's going on in town http://www.rhein-main.net/ You also find adresses of nearly every restaurant in town as well as top ten raking for the special types of restaurant like italian restaurants or "Appler Kneipen".
The website belongs to the magazine Journal Frankfurt which is issued every 2 weeks with all tips for going out and all other activities.
Or you can try this site www.prinz.de which also belongs to a magasin ...Check out this page, here you find English reviews on restaurants, bars, shops ...
www.qype.com
The reviews are from mainly from locals, on the German page you even find more tips.