I've created a free toolbar that works with Internet Explorer and Firefox web browsers. Unlike other toolbars, this one is focused on ham radio. It is completely free, doesn't contain any evil spyware or other annoying gotchas.
With it, you can simply select some piece of text in your web browser window, then choose (from a search menu) to find that item in: QRZ, eHam product reviews, eHam classifieds, QTH.com classifieds, DXWatch spots, or FindU APRS site. There are many more features - including a propagation gadget, RSS ham radio blog feeds, podcasts and more.
Check out the HamLinks Ham Radio Toolbar.http://www.n0hr.com/Ham_Radio_Toolbar.htm