Hi, I'm Kay, creator of FreePrintableCertificates.net and the other sites under the FreePrintable.net "umbrella".
I started building this collection of free certificates in 2005. I do my best to offer great-quality printable documents for free, with cheap options available too ($5 is cheap, right?)
What makes my site different is that all of these printables were created by me and my team. 100% made by humans, not bots. They're not available anywhere else on the 'net. A lot of other printables sites sort of "borrow" from all over, without paying attention to copyright or the quality of the documents. But my printables are my printables, not stolen/borrowed/liberated from all over. (In fact, if you do find these certficates elsewhere, please let me know.)
(The picture is of me holding an Atari 800XL. I like old computers.)