If you read that heading and knew what IFTTT stands for, you've just understood the entire story. Move along. Nothing more to see here. (But check out IFTTT's own announcement for the details.)
I do know that it stands for If This Then That and I do use the service but at such a low level that I forget it's there. If I mark somebody's tweet as a favourite, for instance, I know that If This Then That has been set up to automatically save that tweet to an Evernote note of mine. But I can't remember how I did that, I don't remember when I set it up, and I hardly remember that it's there: I just tap that Favourite button and forget about it.
So I'm not the best guy to tell you about any new IFTTT channel – any new thing you can control via IFTTT – and I don't usually try. But this one looks good:
“We’re thrilled to introduce a powerful Channel that everyone can use — no activation necessary. The new Email Digest Channel collects the content you care about and delivers it on a daily or weekly basis.
The examples include getting the service to email you the weather report every day. Or if there's a new free app on the App Store, email you about that. (Somebody's really done that. Are they mad?) Take a look at the short IFTTT announcement and then follow its links to what people are already doing with this. If you see something you like, a few taps and a sign-in get it working for you. For free.