Projects · 2005

DoubleTrust: save time searching

A search engine built on the premise that trusting two authorities is better than one. I built it during my PhD, in the early days of web mash-ups, and it was picked up by BusinessWeek, ABC7, the Associated Press, and search and tech sites across the US and Europe.

What it did

DoubleTrust sent each query to Google and Yahoo and merged the top 40 results from each into one compact table of about 80 results. Results both engines ranked well were the stars. Results only one engine returned were the orphans, the good sites you'd miss by using just one engine.

A Trust-o-Meter let you decide how much to trust each engine, which set the ranking of the shared results. The table showed each page's Google and Yahoo rank, a bar for page size, the domain color-coded by type (.edu, .gov, .com), and the site name in bold, since the URL often tells you more than the title.

Annotated DoubleTrust results table showing titles, URLs with page-size bars, color-coded domains, and Google and Yahoo ranks for a search on moon landing
The results table, annotated, from the original site.

Original site (2005) About page Full coverage list (40+ blogs)

Press

Scan of O Sul newspaper, Porto Alegre, June 23, 2005, with a short piece about Ashish Gupta and DoubleTrust
O Sul, Porto Alegre, Brazil, June 23, 2005: “Duas certezas valem mais do que uma só, acredita Ashish Gupta, um estudante de sistemas da Northwestern University.”

Outlet names link to full-page captures of each article, saved here because the originals are gone. The original address and the Internet Archive copy are listed as backups.