I can heavily relate. I was unemployed from early November until this past April. I applied to many, many jobs and was even working with multiple recruiters. I have been working in the legal field for about 10 years, but I was about to get a job as an electrician or plumber's apprentice because I couldn't wait any longer. Finally, I landed a temp to hire job and they decided to bring me on after a few weeks.
I wish I had better advice than to keep plugging away, but that's about all I can tell you. It did work for me eventually. You might try looking for short-term jobs. In the past I've worked for UPS around the holidays or the census bureau, but I couldn't find anything like that recently. Good luck!
I just posted my resume on Linked in and was contacted by like a dozen different recruiters over a few months. I imagine that this varies a lot by profession.
When I used to do data entry, I contacted a couple of recruiting firms I found on Google, and they were able to find me suitable work very quickly.