R packages

rGBIF: An interface to the GBIF API for the R statistical programming environment.
pyGBIF: Python client for the GBIF API.
taxize - Taxonomic Information from Around the Web: R package for interacting with a suite of web ‘APIs’ for taxonomic tasks.
Bionomia: Tool to link natural history specimens to the world’s collectors.
gnparser: Tool for splitting scientific names into their semantic elements with an associated meta information.
Biogeo: R package developped to detect and correct geographic errors in occurrence datasets.

Tools

MAXENT: Software for modeling species niches and distributions.
QGIS: A Free and Open Source Geographic Information System.
Specify: A comprehensive collections management application.
Symbiota: A robust content management system and tool for biodiversity data exploration.
TaxonWorks: An integrated web-based workbench for taxonomists and biodiversity scientists.