It's a small amount per click, and it builds up very slowly (still no payment yet!), but we cannot be asking/telling users to click as if we did that we'd get barred from the scheme. On sites with huge traffic, it's well worth it. It doesn't cost us anything to have the ads on it, so it's a long term strategy to help pay for parts of the site <!-- s:D --><img src="{SMILIES_PATH}/icon_biggrin.gif" alt="

" title="Very Happy" /><!-- s:D -->