After launching major revisions of its iPhone and Android apps last week, group chatting startup GroupMe is tossing in another new feature, right before South by Southwest starts. "Joinable Groups" ...

这款短信群发应用很酷，但即便其创始人也明白，这款应用最大的卖点不是短信，而是群组的力量。 如果你曾期待快速群发短信，那么现在有很多这样的服务可供你选择了。最近几个月，短信群发软件纷纷问世，而风险资本家也注意到了用户表现出的兴趣。

Groupme, the little group messaging service that made a bit of a splash at Google I/O, turns 3.0 today. There are some shiny new features on board, including a simpler way to exchange private messages ...