There are lists about but I am not sure if any of them are up to date. It'd be nice if someone who is not busy would keep such a list. The TWC Wiki one is the best organized imho and probably one of the more up-to-date ones.
http://www.twcenter.net/wiki/Released_Mods
Also see MMS in my sig for a sampler of some of the top RTW/BI/Alex mods.
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