The archive is very popular, and unfortunately this means that it costs a fair amount of money to run. These costs are offset by generous donations from readers.
It must be stressed that donations are by no means required, and never will be. If paid-for features are ever implemented they will be in addition to what is currently available. None of the content on the site will ever be charged for.
All donations are managed via paypal.
At the request of some members, recurring small donations have now been added. Choose how much you would like to donate: