Google has newly introduced Google Pages which allows you to create your webpages with AJAX interface (Web 2.0?) . It is quite a slick product, provides 100MB of space, file uploading etc. However it also exposes your GMail email address (which it requires for signup) to be harvested by spammers.

Google Pages creates your home page with the following structure (example):
Email.Address.googlepages.com

A simple Google query exposes all the email addresses of the Google Pages creators, which can be trivially harvested by any robots or humans.

My advice on Google Pages - stay away from it or create with a junk GMail address, unless you love spam.

Update: I found prior discussion of this issue on Outer Court blog.