If the adverts displayed on the site interest you, then clicking those helps raise a small sum. But better still would be a PayPal donation. You can do that either using the button in the right hand menu (you don’t need a PayPal account to donate using PayPal – just a bank card) or even better, and even faster, by simply navigating to https://paypal.me/quickhash
Testimonials or donations (your name, company and\or amount donated) can be posted on the “Donors and Testimonials Hall of Fame” page if you add a request for me to do so. Donations and testimonials are a good way to boost user confidence in the software and listing your details (or your company name\agency name) on such a page is a good way for you to get something back from your donation by way of a link and a mention to your business.