The Checklist of the Collembola of the World constitues a comprehensive
resource in the field of Collembola systematics. The checklist is searchable
by taxon and is linked, at three taxon ranks (family, genus and species), to
global distribution maps.
In addition, the site contains complementary information including biology,
identification, collecting techniques, bibliographies and images.
The checklist is designed for a browser that is capable of managing frames.
You can get such a browser from Mozilla.