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The Adobe Acrobat User Community is a global resource for users of Acrobat and PDF, with free eseminars, tips, tutorials, videos and discussion forums.

The Scripps Research Institute

YouTube is a place to discover, watch, upload and share videos.

wikiHow is a wiki based collaboration to build the world’s largest, highest quality how to manual. Our multilingual how to manual has free step-by-step instructions on how to do all types of things.

IT Best Practices, How-tos, Product Reviews, discussions, articles for IT Professionals in small and medium businesses

The Planet PDF Forum is a fully fledged PDF discussion forum. There are areas for beginners and experienced PDF users, as well as those dedicated to print & prepress, developers, forms and PDF news.

Wonder How To is your guide to free how to videos on the Web. Search, Browse and Discover the best how to videos across the web using the largest how to video index on the web. Watch the best online video instructions, tutorials, & How-To...

PDF Editor to replace Adobe Acrobat: Create, Fill, Save, Delete, Submit, Reset PDF Form. Insert Text, Image, URL, Whiteout, Highlight, Drawing, Commenting, Action and Bookmark into PDF. Scan paper form into PDF. International language Support. Cre...