Get Your Free Icons From Google
The Google Design team has released as open-source a set of 750 glyphs (icons) today. These free icons are intended for application development, but there is no reason why you couldn’t use them for whatever you want. I’m sure there are some web developers out there that will find something here. Google has released this as part of their Material Design Guidelines, which you can read more about at their blog by clicking this link → Read about Material Design Guidelines.
All the info you need to download and use these free icons can be found at this link → Material Design Icons.