Did you ever gather with a group of gardeners, knowing they were all gardeners, and just start chatting about gardening?
Multiple conversations go on at once and you join in some and just listen to others. Or maybe you start up a new topic.
Plurking is kind of like that. You wander over to the Plurk site and see what people you are following as designated friends are talking about, and add your thoughts in ongoing threads. Or you start up a new topic and maybe someone will add something to it, all in 140 characters or less.
We've got a dozen or more garden bloggers on Plurk now, and have plurked on topics such as tomato staking, weeding, blogging, weather, mowing, hoeing. You name the topic. Sometimes with multiple threads started, the pace is quick, but not too fast that you can't enjoy it.
Why don't you join us and try it out? It takes a little getting used to, is a bit addictive, and requires some willpower not to let it eat up your whole evening, but it's fun in it's own way.
What's to lose, except maybe an hour or two?