Free Las Vegas Rooms, Buffets, Drinks, Shows through myVEGAS Facebook Game
Some of the more popular one are Bellagio Buffet, all the Cirque shows, and lots and lots of room offers. You don't have to pay resort fees if you get comped by them.
I have over 300,000 loyalty points now which wasn't hard to get. Bellagio lunch buffet for 2 cost 21k lp, freshly made crepe at Aria for 6000 lp, and 2 tickets to LOVE for 85250 just to give you an example of what things cost.
https://www.facebook.com/myvegas - There's the link to their facebook page.
http://www.myvegasadvisor.com/ - Free myVEGAS Chip links and Hotel Reward Calendars
Facebook group page - go down to the 500+ chip thread and there should be a giant list of chips. Use that and you'll start out with like 30-50k chips.