Indexes U.S. research postgraduate theses from 1861, with theses from other countries now included. Full-text downloads are available for most theses from 1997 onwards.

The British Library's electronic theses online service which allows you to search across 250,000+ theses for free and order full text.

ROAR includes links to 100+ sites providing e-theses.

Trove contains almost a million theses. Some of these are in print format only, others are available online in digital format