Man…Will Jensen just showed me the coolest site. It’s developed by the BYU E-business center and it links LDS scriptures to LDS General Conference talks that reference those scriptures. ie.
Welcome to the LDS General Conference Scriptural Index. This index links from scriptures to the general conference talks that cite those scriptures. So, for example, suppose you want to know who has cited 1 Ne. 3:7 in general conference; click on the Book of Mormon link at the left and scroll down to 1 Ne. 3; there you’ll find the answer. Who has quoted Matt. 5:48? Use the New Testament index to find out.
Find it at http://scriptures.byu.edu