I am using EDD webcert(web-cert) to file for California unemployment benefits, but am traveling to different places, looking for jobs and dont have access to postal mails everyday. I believe EDD web-cert, online, can be used well for this purpose?

Yes, and EDD webcert is really great, since one does not need to be physically at home to file the continued claim forms. You can have someone at home(or mailing address) collect your checks for you, and use the online EDD webcert to keep filing the continued claim forms for benefits.