referrer log question

I was looking at referrers for a site, and noticed that there are
referring pages listed that don't have a link to the site in question.
However, these are sites that are similar to the page in question
(i.e. a resume page, and referrers were other computer geek resume
pages).

Are there web browsers out there that send a referrer to a site
without a link involved?

I know web proxy software can fake these referrering URL's, but it'd
be odd for this many people visiting my resume to have a web proxy
configured to point to their own resume as a referrer. It seems more
likely that some recruiter out there has a broken web browser?

Anyone know more?

Best Regards,
--
Todd H.
http://www.toddh.net/