What we need are apps that plug into commonly-used programs. An example of what I'm talking about is Google Talk: it's a chat program, and I use it from time to

What we need are apps that plug into commonly-used programs. An example of what I'm talking about is Google Talk: it's a chat program, and I use it from time to time, but I never run it. It just happens to be there when I have Gmail open, so if I should need to send an instant message to someone, I can just do it. If I had to remember to fire up a separate app just for that, I probably wouldn't bother. Or look at Zotero: it's a program for managing bibliographies, for filing away papers and notes when you're doing research online. It also happens to be a Firefox plugin. When I have a research paper open in my browser, I can just click an unobtrusive icon to save the citation for later. The extra burden of opening a separate app just isn't there. I'm sure there's money to be made from this idea.