Deleting cache on a Mac is pretty much simple and easy. All you have to do is go for manual process or download a smart tool that deletes all the cache in one single click so read the blog for the same.
Pursor.com is a free social bookmarking platform for free to use. Anyone can submit their content with links to this portal. It is a great place to get quality links for your sites which could help you to index your pages for search engines.