lygo_html has some utilities for parsing HTML and crawling web sites.
To use just call:
go get -u bitbucket.org/lygo/lygo_ext_html
go get -u bitbucket.org/lygo/lygo_ext_nlp
go get -u bitbucket.org/lygo/lygo_ext_http
go get -u golang.org/x/net
Sources are versioned using git tags:
git tag v0.1.2 git push origin v0.1.2