The Nielsen Broadband Panel has changed their incentive from $2.5 per month to $5 per month.
I reckon that's a fair deal for participating in their panel.
I joined last week so I'm waiting to see how it goes.
See previous deal if you require a deeper explanation of what this deal is. You will need to take up / have taken up the previous deal in order to receive monthly incentive payouts.
Mod note: OP is associated with the deal and has sockpuppeted.