Freebies and Trials
There is a saying "You get what you pay for". The interpretation is if you pay a lot then you get the best, if you pay little or nothing you get exactly that - little or nothing. In the world of the webmaster freebie, the good stuff often has adverts attached. But you may just find what you need.
These should start you off, we will add more as time goes on.
One of the most frequent requests is for images and clip art.
Claiming to be the web's number one webmaster resource, Bravenet offers a vast array of additives for your sites. You may find your site host also has a selection available.
Also, one of the most comprehensive sources for trial software has to be Tucows.