Copy editors look things up
Those of you still enmeshed in antiquated reality-based, accuracy-inclined enterprises that limit your freedom to make things up to suit your (or your employer’s) views might want to have a look at Katharine O’Moore-Klopf’s KOK Edit site.
The Copyeditors’ Knowledge Base page at that site—yes, she makes copy editor one word, but press on—has several useful categories, of which the handiest may be the Editing Tools section, which in turn displays a wealth of links to sites on which you can look things up. She takes some pains at maintaining and updating the links. You might just want to put Editing Tools on your desktop, or perhaps to go through it and bookmark the links most useful to your work.