| Yea Thottbot has a nasty habit of incorporating old things into the database, like things from beta, or spells mis-labeled etc...also if you do certain searches there is actually quite a good deal of it missing; certain professions have missing recipes - Wowhead has it all gathered, without things missing, without half or incorrect entries and nicely categorized.
I occassionally hit thottbot when new quests hit, because most won't have had time to update wowhead with comments, but thottbot being so mainstreamed is usually hit immediately.
Other than that, WoWhead > Thottbot |