You can look at the sites source code and looking it has no follow tags or you can install the SEO For Firefox addon which can highlight no-follow links for you
If your using firefox you can use the SEO tool by seobook.com as noted above ^^ or you can select and highlight the link and right click view selected source> and look for rel="externalnofollow" or rel="nofollow"
Agree, the SearchStatus add-ons especially.. Try to download it and install it... Highlight the links with nofollow in red...