Searching the Darknet

Ever since the early days of Fravia and Searchlores Ive understood that the power of the net is the ability to search it.
Its been a while since ive seen an article on searching that references methods other than Google.

[Link]

For those that wish to explore further - there is video of a talk & relevant papers on the web ... I shall leave you to seek these yourself. The lecture was delivered by 'Fravia' at a 'Conference in Montreal (Recon, June 2005)'