If you are interested to play a little bit with graphs, see my Graph Lab. I have started working on it recently and it needs so many features to be practically useful, but still you can have a look to it and your comments are appreciated so much.
Combinatorial Data
I have a set of combinatorial data on my website. If you want to know more, have a look to the combinatorial data page.
My Field of Study
If you are interested to know what I do in my research, see graph generation page which contains non-technical explanation of my work.