Sixty-Four Free Chemistry Databases - Five and Counting...

Over at Zusammen, the first five installments in a sixty-four part series on free chemistry databases and Web services have been posted:

1. PubChem
2. Sigma-Aldrich Reaction Search
3. Heterocycles Web Edition
4. Electronic Encyclopedia of Reagents for Organic Synthesis
5. CrystalEye

Keep those suggestions for new sites coming in!