I have three websites, two in the same niche (lets say jewellery) and the other one in a different niche (lets say hand bags).I have adsense ads on my "handbags" site.I haven't monetized the other two.

I have a facebook fan page for "handbags".Can I place that facebook fan page box in my other two sites as well ?(since women who are interested in jewellery might also be interested in handbags as well)

Is that against facebook or adsense TOS?

Thanks