Do have every Star Trek book published by Pocket Books or are there times you need to consult a resource like Memory Alpha or Memory Beta?
I don't have room to have all of them, but I can request any I need from the editor, and yes, the Memory sites are often useful.
Since those sites are fan-written and edited, though, I wouldn't rely on them with absolute certainty. They're a great handy shortcut for reminding you of something you probably already knew in general but couldn't quite remember the specifics, but I wouldn't believe them absolutely without backup evidence. After all, didn't we just have a few posts about how wildly inaccurate the description of Olympus Descending