I can semi-help with that.
For starters, here is a spreadsheet of the gambling promotions from the two books for this year as well as a handy map of all the casinos, their gambling promotions for the year and their membership affiliation.
As for sign up bonuses, a year and a half ago I went on a quest to visit every single Strip and Downtown casino, sign up for their card and see how many free stuff I can blag. Here is every sign up promotion available correct to June 2015 (so your millage may vary):
Circus Circus - $30 for $45 non-neg chips
Plaza - T-shirt
Golden Nugget -
20 points ($60 playthrough):
Random freeplay - $5
$10 Matchplay
Silver Sevens:
$4 slot freeplay
Scratch card (T-shirt)
Four Queens:
Free Ace
$10 slot freeplay (10 points)
$10 matchplay (10 points)
Card Deck
Binion's:
Free Ace
$10 slot freeplay (10 points)
$10 matchplay (10 points)
Palms - Slot freeplay Spin - $5
Hard Rock Casino - $5 slot freeplay
Best Western - $20 loss rebate in slot freeplay
Hooters - $5 matchplay
Ellis Island - $10 slot freeplay
Tuscany:
Random freeplay - $5
Dice / Keychain
Tropicana - $200 rebate in slotplay
Downtown Grand - $5 slot freeplay
SLS - Random slot freeplay - $5
