Do these demonstrate specific skills, knowledge and abilities directly related to the jobs for which you are applying?
Are the repositories open source?
Are you contributing to other people's open source projects?
Is your resume available on more mainstream job sites such as LinkedIn?
Some of my projects are open source on github.
I haven't contributed to anyone else's open source projects. That should not be a deal breaker though.
My resume is available on CareerBuilder, which is basically a huge feed for recruiters. I've applied to recruiters who email me, but never a response back.
I do not have a LinkedIn, but am considering it.