Freeology is maintained by a teacher in California.
This site was created in 2000 in conjunction with my teaching credential program. One of my assignments was to create graphic organizers. After realizing the versatility of graphic organizers, I put the first 16 worksheets online at Freeology.com for others to download for free. Over the years, I have continued to add free teaching resources.
There is no registration or annual fee to use this site, and all materials are offered under the Attribution-NonCommercial-ShareAlike Creative Commons license.
Note: The above comes directly from their website. Click here to read more!