MirrorFly - World's Most Scalable Voice, Video & Chat SDK for Small, Medium & Enterprises
Wondershare PDFelement - All-in-one PDF editor
echofin - Echofin helps communities grow, engage and monetize their following in ways no other platform has done so far.
Google Docs - Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.
chatwee - Group chat app for online communities. Used wherever visitor interaction and engagement are key to the site's functioning.
Foxit PhantomPDF - Edit PDF files with our feature-rich PDF Editor. Download Foxit PDF Editor to convert, sign, scan / OCR & more. A speedy PDF Editor alternative to Adobe Acrobat.