A fluent and functional approach to querying HTML
jsonq package for Go. Golang XPath query for JSON query.
htmlquery is golang XPath package for HTML query.
XPath package for Golang, supported HTML, XML, JSON query.
xmlquery is Golang XPath package for XML query.
Extract data or evaluate value from HTML/XML documents using XPath
CSS selector library in Go
A little like that j-thing, only in Go.
Gin is a HTTP web framework written in Go (Golang). It features a Martini-like API with much better performance -- up to 40 times faster. If you need smashing performance, get yourself some Gin.