Wikipedia: Tlön, Uqbar, Orbis Tertius - Article with a summary of the story and sections on its themes, use of fact and fiction, context and publication history. - http://en.wikipedia.org/wiki/Tl%C3%B6n%2C_Uqbar%2C_Orbis_Tertius
The Library of Babel - An image inspired by Borges' story, accompanied by the text of the story itself. - http://jubal.westnet.com/hyperdiscordia/library_of_babel.html
The Zahir - Text of Borges' short story. - http://www.acsu.buffalo.edu/~jatill/175/zahir.htm
The Circular Ruins - Text of Borges' short story. - http://www.acsu.buffalo.edu/~jatill/175/CircularRuins.htm
They are the Rivers - English translation of the poem "Son los ríos". - http://internettrash.com/users/danielg/borgescrollen.html
Ulrike - From the NY Times archives [site requires free registration to access.] - http://www.nytimes.com/books/97/08/31/reviews/borge-ulrike.html
The Cruel Redeemer Lazarus Morell - Archived at the New York Times [site requires free registration to access.] - http://www.nytimes.com/books/first/b/borges-fictions.html
Who Needs Poets? - A brief essay by Borges, originally printed in the New York Times. [Site requires free registration to access.] - http://www.nytimes.com/books/97/08/31/reviews/borges-poets.html
Borges and I - Borge's own words on Borges--an e-text version and an annotated hypertext version as well. - http://www.georgetown.edu/irvinemj/english016/borges/borges.html