| Botanical Gardens in Poland | | Site hosting collection of page-long descriptions of botanical gardens in Bydgoszcz, Lublin, Lodz, Poznan, Warszawa, Wroclaw and Zakopane. |
| Butterflies of Poland | | Database of butterfly species and their geographical distribution in Poland. Site at the Nicholas Copernicus University, Torun. |
| Environmental Information Centre GRID-Warsaw | | Responsible for collecting, procesing and providing information on environment in Poland and neighbouring regions, cooperating closely with both global and European environmental institutions. Overview of activities, publications, databases, links. |
| Fungi of Poland | | Photographs and description of thousands species of macrofungi growing in Poland, index of scientific and common names, protected Polish fungi and Polish Red List of fungi, fungi through seasons. |
| Gdynia Aquarium | | Virtual tour of exhibits, educational resources, tourist information including opening hours, ticket prices, location, directions and gift shop, and nearby attractions. |
| IM PAN | | The Institute of Mathematics of the Polish Academy of Sciences. In Polish and English. |
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