After 5 years in e-commerce affiliate marketing, I switched to focusing on Affiliate marketing for SaaS products last year - best decision ever. The commissions are way more predictable since they're subscription-based rather than one-off purchases. Most SaaS companies offer either a percentage of the monthly subscription (typically 20-40%) or a flat fee per signup. What I love most is the recurring revenue model - some programs pay commissions for the lifetime of the customer, so I'm still earning from referrals I made 8 months ago