ProQuest Dissertation and Thesis OPEN provides the full text of open access dissertations and theses free of charge.
Networked Digital Library of Theses and Dissertations
NDLTD is an international organization that promotes the adoption, creation, use, dissemination and preservation of electronic theses and dissertations. You may search several collections in the "Browse/Search" section. Many are freely accessible. Try the "Scirus/ETD Search" option first.
YÖK National Thesis Services
Search for bibliographical thesis records or full-text thesis permitted by their authors. Affilliation to the site requested.