It's possible to say that all of the Torah references Sinai tangentially, so you might want less of a tangent...
Instead of listing out sources (since as @DanF mentions, there are many, and since list answers aren't very interesting), I'd like to point you to some resources on this. Check out the Intelligent Index to the Talmud and HaMafteach, the Index to the Talmud.
For a more classical approach, you can also check out the Toldot Aharon or Toldot Yaakov on the verses in Shemot that you're interested in. Although I've provided some links to poorly-scanned versions, you can usually find Toldot Aharon in a Mikra'ot Gedolot, and someone with more patience than I may be able to provide better links.
That's Talmud. As for Tanakh, I'd just use a concordance (like Strong's) and look up key words - Sinai, Torah, etc.