The LMFDB [external link - more maintained and modern]
If you have any questions or comments, please send me email [email protected].
In order to make these tables, I make extensive use of Sage, MAGMA, C++, LiDIA, and PARI, and greatly appreciate the work of the designers of these packages. If you find these tables useful when writing a paper, please feel free to acknowledge them; however, I don't require this. If you are seriously going to use some of these computations in a paper, it might be nice to email me so I can double check their accuracy using my newest software.
Some computational resources used to make these tables: