For those of you who may have missed a Catch of the Day or who didn't have the opportunity to look at some of them during this past week, here's a second chance.
Pollmo is a very simple, easy-to-use, free online polling application. No account or sign up is required.
Substance is a fully web-based document authoring and publishing platform that allows teachers and students interested in publishing to use an open platform for writing and sharing articles in a collaborative way
Use the Optical Character Recognition (OCR) capabilities of Google Docs to convert PDFs and scanned images of pages to editable text for free.
Teachbuzz is a nonprofit project of Open Equal Free, an organization that spreads open educational resources to the entire world. Teachbuzz is designed to provide teachers everywhere with the necessary resources to create and teach great lessons.