tweakbench is entirely funded by the donations of its users. the server space, bandwidth, and the software used to develop the plugins is all paid for by generous donations from ordinary musicians.
if you like what tweakbench is doing, and would like to help out financially, please do so with either the paypal button in the bottom left, or by donating for the bundled download. every donation lands in my inbox and reminds me to keep working on plugins. so if you'd like to see more, faster.. you know what to do. thanks!