IFTTT is an online service, commonly referenced on these forums, that helps automate things between other online services. The acronym IFTTT stands for "If this then that". Basically, if something happens on "Service A", it triggers an action to happen on "Service B".
Evernote is one of the many services that can be used with IFTTT, but what sort of triggers or actions can be created using Evernote? If you aren't creative, don't sweat it! You can click the headers to find recipes that others have created using Evernote as either a trigger or an action.
Evernote as a trigger: