Excellent sketchup resources.
This site hosts about 40 videos about sketchup. if you are looking at using sketch up (and who wouldn’t) this is a great starting point.
25 Virtual learning experiences. This is an excellent post with a great list of online resources.
Free-OCR.com is a free online OCR (Optical Character Recognition) tool. You can use this to perform OCR on any image you supply. This service is free, no registration necessary. We also do not need your email address. Just upload your image files. Free-OCR takes either PDF, JPG, GIF, TIFF or BMP format. The only restriction is that the images must not be larger than 2MB, no wider or higher than 5000 pixels and there is a limit of 10 image uploads per hour