- The MRC Psycholinguistic Database is a machine usable dictionary containing 150837 words with up to 26 linguistic and psycholinguistic attributes for each. http://www.psych.rl.ac.uk/
- WordNet Lexical Databases for a broad range of languages:
- The ARC database provides non-word stimuli: http://www.cogsci.mq.edu.au/~nwdb/nwdb.html
- The International Picture Database is the result of a large international study to provide norms for timed-picture-naming in different languages and cultures (American English, German, Mexican Spanish, Italian, Bulgarian, Hungarian, and Mandarin Chinese (Taiwan variety); http://crl.ucsd.edu/experiments/ipnp/ ). Pictures can be searched by lexical parameters, percent name agreement, response times, and visual complexity.
- The International Affective Picture System offers photographs for emotion research (http://csea.phhp.ufl.edu/media/iapsmessage.html ).
- The TarrLab Stimulus Repository contains picture stimuli for experiments
- The CHILDES database for child language data comes with the ChildFreq tool that lets you extract word frequencies: http://childfreq.sumsar.net/ ; see also our own CHILDES info page
- Further links to Archives of Data and Stimuli