Does this happen in any other applications? Are icons fuzzy as well on the dock or desktop? If that's the case, you might not be running at the monitor's native resolution.
the fuzziness is only on the web-pages in safari - same web-page is okay on firefox - i think firefox is the best and with ver3.0 there is no competition.
If it's just the browser, try changing browsers. If THAT doesn't work, stop leeching your neighbors internet ;) (http://www.ex-parrot.com/~pete/upside-down-ternet.html)