The aim of eBiodiversity portal (http://elurikkus.ut.ee/) is to provide a comprehensive resource on Estonian biodiversity by bringing together scientific and citizen science datasets. The portal provides public access to a wide variety of taxon occurrence types including specimens in scientific collections, observations, sounds, images, videos, references in literature and DNA-based observations. Aggregated across all occurrence types, there are data on 23,396 species found in Estonia. Some species have very rich datasets while others are known to exist in Estonia only based on references in the literature. The main target groups of the portal are scientists, teachers, schoolchildren, conservationists, and policy makers. The eBiodiversity portal is maintained by the University of Tartu Natural History Museum. Major data providers are the University of Tartu, the Estonian University of Life Sciences, Tallinn Botanical Gardens, the Estonian Naturalists’ Society, the Estonian Ornithological Society, and Estonian birding clubs. In 2012 there were 99,939 unique visits to eBiodiversity from 101 countries, mostly from Europe and North America.

The eBiodiversity portal is involved in the BalticDiversity project (http://balticdiversity.eu/) with sharing data with all partners involved. The other major project is "EU BON" (Building the European Biodiversity Observation Network, http://www.eubon.eu/), where our main role is to develop methods for citizen science and gap analyses of existing data sources.