Hello,

Several people in previous threads had asked for tips in improving
security and privacy protections. Electronic Frontier Foundation has a
nice writeup, simple (not simplistic) and concise and with references,
about search privacy.

http://www.eff.org/Privacy/search/searchtips.php

EFF also supports tor, referenced in item #6.

http://tor.eff.org

If you want to use tor with the Firefox browser, you may want to get and
use the "SwitchProxy Tool" extension. This makes it fast and easy to
select or de-select the tor servers (and privoxy proxy) at any moment's
notice. (No pain, _big_ gain.)

Hope this is helpful to some.