wwh,

I keep my classroom computer online all day long, with usually a page for Google open and AWAD open for quick checks.

In the old days, it appeared as though 'Wordwind' was there all the time, when I wasn't. I decided it was just too confusing to appear to be actively online when, for most of the time, I wasn't really there, so I chose to appear 'invisible.' And there are probably lots of other reasons people have for not wanting to appear visible--perfectly innocent, logical reasons.