Google (Google Hangouts, Google Docs)
This is as far as I got with G in relation to e-learning. Gagné is really learning and learning design, rather than the e-learning subset. Google of course is the big one. Just type your question directly into Google and take it from there. Google Scholar works so well I may sometimes start with that before putting a refined search into the OU Library. As students we used Google Hangouts often during Master of Arts in Open and Distance Education (MAODE) modules - and we did just that, 'hung-out', usually with coffee, sometimes a glass of wine. I only use Google Docs. I won't use Microsoft Office at all except where submissions require it; I love the simplicity and functionality of Google Docs and happily move between multiple devices. For an excellent example of gamification in learning I'd look at Rosetta Stone - I'm some nine months into improving my French and loving it. Another example is from the Merriam-Webster online dictionary: I love it for the quality of definitions, the video clips and the games.