Creating HDRIs is expensive. Camera equipment and travel costs are notoriously high, but there are also day-to-day costs of running this site, serving huge HDR files to thousands of users.
This is where you come in. With your support, we can not only keep HDRI Haven alive and running, but we can improve it. Higher resolution HDRIs, more of them, more often, and in more interesting places.
Not only can you contribute financially, but you can directly involved in the process, helping to decide what HDRI I shoot, where I travel and ultimately how your money is spent (verified by monthly financial reports).