In June, Google announced that it was shuttering Meebo, the pioneering Web-based instant-message service it had acquired. Thank goodness for Imo. It still lets you lump AIM, Facebook, Google Talk and just about every other IM service you might use into one efficient in-your-browser app, which doesn’t require you to download or install any software. Imo is also available on iOS and Android devices, where it lets you make VoIP phone calls.