i-Biology.net hosts resources, presentations and ideas for the whole IB Biology course. Over 2 million visitors have used the site. It is free to use, and Creative Commons.
Donors who the give the value of a study guide (£20) or more will be able to join a shared folder with editable powerpoints.
100% of all donations goes to charity.
Note: The £205.00 recorded as 'offline donations' refers to donations made by i-Biology.net donors through the old gifts4good.co.uk service, which has now closed down. I include the value here to keep a running total.