Links for dot2tex
2.8.2 home_page
2.8.2 download_url
1.5.0 home_page
1.5.0 download_url
1.5.1 home_page
1.5.1 download_url
2.0.0 home_page
2.0.0 download_url
2.0.1 home_page
2.0.1 download_url
2.0.2 home_page
2.0.2 download_url
2.5.0 home_page
2.5.0 download_url
2.6.0 home_page
2.6.0 download_url
2.7.0 home_page
2.7.0 download_url
2.8.0 home_page
2.8.0 download_url
2.8.1 home_page
2.8.1 download_url
http://tug.org/PSTricks/main.cgi/
http://www.ctan.org/tex-archive/help/Catalogue/entries/pgf.html
http://www.graphviz.org/