If you'd like to help add to these lists, please have a look at the page for contributing to the wiki.
If you're looking for spells arranged alphabetically, try this page.
If you want them arranged by rarity, try here.
These are not actual colleges, but are groupings of spells with something in common.
Again, not actual colleges. Most of these are Unique spells that that are well-protected from outsiders learning them, but members of the group in question can usually learn them at no cost.