Leibnitiana - (Gregory Brown) - technical perfection and valuable information of Leibniz's life plus a great bibliography of Leibniz-literature
Gottfried Wilhelm Leibniz: Texts and Translations (Donald Rutherford) - translations and research resources
Leibniz resources - Philweb, contains conferences, texts and other resources on Leibniz
J. A. Cover's page - Leibniz collectibles and more...lots of nice pictures!
Leibniz-page by Maarten Maartensz - contains commentaries on Monadology and New Essays
Leibniz-page from Monoskop - handy chronology and other useful stuff
Leibniz -Translations - lots of unpublished translation to English of various texts in this suberb page by Lloyd Strickland
Getting Started with Leibniz - excellent page by Donald Rutherford
Lingua generalis - A very good Leibniz fan page from Dolphin Logic - from Japan
Leibniz-Principals of Sufficient Reading - a bibliographic page from Mike Beaney
A concise introduction - by Miles Hodges
Garth Kemerling's Leibniz page - includes a survey of commentaries
A Leibniz page by Robert Sarkissian
Leibniz-page from Truth & Reality
An introductory page to Leibniz - by Bibliothèque nationale de France
Leibniz-page from Wikipedia
Leibniz-page from Philolex
Nice, bouncy introduction to Leibniz by Fusion Anomaly
Leibniz from the 11. ed. of Encyclopedica Britannica
Leibniz-page from Cyberheroes - by Wobbe Wegter
Personal introduction to Leibniz - by Kelley L. Ross

Leibniz: Digitale ressourcen - from G. W. Leibniz Bibliothek
Leibniz-Nachlass und Weitere Leibniz-Material - from G. W. Leibniz Bibliothek
Leibniz-page by Jan-Willem Liebezeit

Leibniz Brazil (Fernando Barreto Gallas) - contains translations to Portuguese, articles and glossary among other things
Still another one! - Brazil really likes Leibniz!
A Leibniz-page by Renato Cantão

Leibniz Wikipedia
Monadologia (Wikipedia)
Leibniz - rationalismia ja monadologiaa