http://www.pledgie.com/campaigns/690 Please support the Public Learning Media Laboratory to develop Boolify and other free, public K-12 educational software! Your donations are used to cover programming expenses for software development. All software we develop will include a list of sponsors (that could be you!) and will be made available for FREE for public use. You can read more about the mission and background of the Public Learning Media Labs at http://www.plml.org. en-us