I am currently a grad student studying computer science and to be truthful, it's starting to get a bit stale, I just cannot foresee myself doing this for the next 20 years. I do have a passion for traveling and recently have been considering doing some ESL(English as a second language) training courses online to try to get a certificate but I'm not quite sure where to start looking. I would like to be able to leverage my technical background as I don't want to TOTALLY abandon the computer field and I think that such a background would really help me stand out, but I cannot seem to find any information on schools that may cater to students like myself. Has anyone here ever taken any online ESL courses? If so where, when, and how much? Of course recommendations are always welcome!