You have probably clicked through from one of my profiles lying around on the internet. @johnserra is the handle I usually prefer to use for almost all my accounts, but you may have come across an @jwserra as well.
Hopefully, I am the one you are looking for, but if not, I still hope you stick around and browse through the different sections of my site. Otherwise, you are just going to increase my bounce rate. 😛
Thanks for stopping by, please take a look around.