[[https://www.openhub.net/accounts/230215?ref=Detailed|{{https://www.openhub.net/accounts/230215/widgets/account_detailed.gif}}]]

[[https://stackoverflow.com/users/646735/felix-yan|{{https://stackoverflow.com/users/flair/646735.png|Stack Overflow}}]]
[[https://stackexchange.com/users/325510|{{https://stackexchange.com/users/flair/325510.png|Stack Exchange}}]]

{{http://stats.free-dc.org/cpidtagb.php?cpid=f81ef12c7219ffc14f5ec3b1ad5adb4b&theme=15&cols=2&.png?|BOINC}}

[[https://ipv6.he.net/certification/scoresheet.php?pass_name=felixonmars|{{https://ipv6.he.net/certification/create_badge.php?pass_name=felixonmars&badge=2&.png?|HE IPv6}}]]