Bluecoat was rolled into Symantec so everything now falls under the Symantec name. You can still search for the BC products:
https://www.symantec.com/products/products-az
This is the forum to come to for BC products. A list of forums by product is here:
https://www.symantec.com/connect/forums/community-forums?community-id=691
Product support is here:
https://support.symantec.com/en_US.html
Each poduct homepage should have the documentation.