GenTeam is a website for Austro-Hungarian genealogy that includes free databases made by and for genealogists. Registration is required. The collection currently contains 6,935,821 entries and is continually updated.
Examples of databases include: Gazetteer of Czech, Austrian and Slovenian Republics; 3500 Members of different lodges; Roman Catholic marriages of Vienna between 1542 and 1850/1860; Indices of Protestant and Jewish Records in Vienna; 18,000 Resignations from the Jewish Community in Vienna between 1868 and 1914; Foundling Baptisms in Vienna Between 1816 And 1868; etc.
For deciphering records in German, Google Translate is helpful.