Avatar Images
http://www.flickr.com/photos/kessiye/408998204/sizes/s/in/photostream/
http://www.flickr.com/photos/yuri_samoilov/9965420034/sizes/sq/in/photostream/
http://www.flickr.com/photos/84609865@N00/3049915594/sizes/s/in/photostream/
http://freerangestock.com/details.php?gid=&sgid=&pid=22331
http://www.flickr.com/photos/alarzy/4231225160/sizes/l/

Icons
https://www.iconfinder.com/iconsets/miniiconset

Microphone Icon
http://www.iconarchive.com/show/shimmer-icons-by-creative-freedom/Microphone-icon.html
http://www.creativefreedom.co.uk/

User Icon
https://www.iconfinder.com/icons/22656/anonymous_man_person_user_icon#size=48
http://www.pixel-mixer.com/