Free shot pal & putter pal as long as you join a CC at least Level 4.
Up to a 5% bonus on your XP (for clubs at Level 13 or higher)
Active clubs run their own competitions and tournaments. A good social club will have lots of match-play events, perhaps even club handicaps and handicap tournaments -- ours does and I know many others do also.
There are often inter-club challenges -- usually involving a list of player-on-player match-plays.
An established club will have a number of high level players who are usually only too happy to help the up-and-coming members with their game.
Each CC has it's own forum, a smaller network than the WGT forum. You can become involved in a group of up to 250 players, that you can interact with as much or little as you see fit. As in life - these opportunities are largely what you make of them.