At 500NL+ it's a $5 cap for 5+ players.
You're correct about there being an additional take for the Bad Beat Jackpot tables up to $.50.
You can find the most up-to-date rake chart by scrolling down their Rules section linked below.
Poker Rules
You can find information about their big Bad Beat Jackpot in the Terms & Conditions by scrolling to the bottom of the link below.
Bad Beat Jackpot Promotion
For all additional comments and questions about this network, no matter what site you play on, please use the sponsored forum linked below.
Sponsored Forum