@@History/@@scroll|# is a persistent unclassified cookie. It is used by facebook.com, youtube.com, twitter.com, songstuff.com and forums.songstuff.com. It is an HTML local storage based cookie.
_ga, and _gid are used for registering unique IDs used for generating and controlling statistical data on how the visitor uses the website. _ga has a 2 year expiry. _gid expires with the session.
_gat is used by Google Analytics to throttle request rate. _gat is an HTTP cookie that expires with the session.
"d" is used by Quantserve to collect anonymous data on the user's visits to the website. For example, the number of visits, average time spent on the website and what pages have been loaded with the purpose of generating reports for optimising the website content. "d" is an HTTP cookie that expires in 3 months.
_pinterest_cm is an HTTP cookies, used by Pinterest to track the usage of services. It has a 1 year expiry.