I hear you. A huge number of the web sites out there selling one or more of the books I've worked on have my last name misspelled, even though it's A) printed on the cover of most of said books, and B) not hard to spell. (Amazon only has it right on Agents of Artifice because we pestered them about it.)

And, at least in part, it's because WotC has occasionally released book info to said vendors with my name spelled wrong, even though I've been working with them in some capacity or other since 2004. :-/