The Monday Morning Joy Posts on reddit/r/polyamory
The largest poly discussion site on the web these days (outside of Fetlife) is, as far as I know, reddit's polyamory subreddit, now with 15,300 subscribers. The population is mostly young, like the rest of reddit.
Every Monday morning, vertexoflife has been starting a Monday Morning Joy Post thread inviting people to "tell us about your past week(end) with your loved ones." Today's went up five hours ago, and it already has 12 stories.
Here's the whole collection of threads since she began them. All the Happy Poly Moments you might want.
Plenty of sturm und drang moments are in other threads, along with lots of (surprisingly, considering reddit's reputation) thoughtful advice and comments.