There are several ways we find people to help with usability tests or user interviews. We use social media networks, we respond to people who tweet about a MailChimp feature we’re currently studying, and we send campaigns to a mailing list of people who signed up to help with testing. (You can join that list, BTW: http://eepurl.com/Dw7D.)
When we have open criteria for user interviews, we get great results through those methods. But when we need to recruit for a very particular feature or criteria, it becomes difficult and time consuming. Getting specific usually increases the recruiting time by a couple days, which is a total drag when we’d rather actually be talking with our users.
Enter Ethnio, a nifty tool that allows you to create a popup screener, make a short survey for the screener, place the popup on your website or send out a direct link on social media, and easily recruit participants for your user interviews or usability tests.