Popling describes itself as "a website + desktop app for people who want to learn, but lack motivation." Every few minutes as you work in other apps on your PC or Mac (you choose how often) Popling displays a question in a small window. Ignore it and it goes away...click it to see the full flash card. It's learning, with no motivation required!
Source(s): Rob Rhyne Multimedia, Inc.
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Source(s): Rob Rhyne Multimedia, Inc.