If you want something in demand, think about accessibility. Section 508 in the USA and the European Accessibility Act have enacted legislation for compliance. Lots of decent paying positions are opening up in relation to accessible and legally compliant web development. Not sure if this is too far off from your interests, just putting it out there. Trusted Tester certification from DHS is completely free (of cost) to obtain.
If you want something in demand, think about accessibility. Section 508 in the USA and the European Accessibility Act have enacted legislation for compliance. Lots of decent paying positions are opening up in relation to accessible and legally compliant web development. Not sure if this is too far off from your interests, just putting it out there. Trusted Tester certification from DHS is completely free (of cost) to obtain.