How a video goes viral: Sometime on Wednesday, Halifax filmmaker Andrea Dorfman uploaded her lovely video, featuring Tanya Davis's poem about solitude, to YouTube. At 6:38 a.m., Friday, when Halifax artist Shelagh Duffett reposted the video to her website, it had been viewed 40 times. Kimberley Mosher, an account manager for a Halifax Advertising agency, saw it on Shelagh's site and put it on her Facebook page, where, in turn, fashion blogger Allison Garber saw it and reposted the link to her FB page. All this happened in less than three hours. Allison's and my mutual friend (and brilliant, Baddeck-based communications strategist) Stacey Pineau sent me the link...