Graph Theory eBook

Here is a complete text on Graph Theory freely available on-line:

http://www.math.jussieu.fr/~jabondy/books/gtwa/gtwa.html

This appears to be a college- or graduate-level text, and it covers the basic ideas from Graphs and Trees to Colorings and Networks.

Each chapter is available as a separate PDF and contains numerous exercises.  There are a number of appendices, like this one discussing Some Interesting Graphs, as well as a glossary and index.

I wish my own professor had used this, rather than making us all spend $100 on a flimsy paperback textbook!