Cowboy–
There are several recruitment companies devoting themselves exclusively to online gambling positions. The best one would be Pentasia:
http://www.pentasia.com/index.asp
Egamingreview has a section on employment, which is massive. It includes all of the major i-gaming recruiters listings (including Pentasia):
http://www.egrmagazine.com/cgi-bin/home.pl
Unfortunately, aside from doing bingo chat, your emailer is going to have a pretty tough time finding casino work to do from home. Pretty much all casinos have in-house staff. Additionally, if she resides in the U.S., she’s not gonna have much luck at all (outside bingo chat), as any wise operator would not hire someone from the States.
Hope this helps.