Crowdsignal
Create surveys for the web and mobile.
What Is Gravatar?
An "avatar" is an image that represents you online—a little picture that appears next to your name when you interact with websites.
A Gravatar is a Globally Recognized Avatar. You upload an image and create your public profile just once, and then when you participate in any Gravatar-enabled site, your Gravatar image and public profile will automatically follow you there.
Gravatar is a free service for site owners, developers, and users. It is automatically included in every WordPress.com account and is run and supported by Automattic.