You'd be crazy not to try Craigslist!! At least in my area, tons of legit jobs are listed there!! I have had 4 nursing jobs and 3 of them were off CL! My current position is in outpatient endoscopy and it is a fantastic job. What you will *typically* find on CL are places that are not big enough to have a separate HR dept with online applications, etc. Where else are they going to advertise these days?
Many of the CL ads post links to the facility's own website. Make an effort to ensure you are applying to a legit job....do research. But truly, it is a great way to get a job. Usually you are emailing your resume and a cover letter to somebody who will actually READ it! Just make sure you always, always have a great cover letter.
Good luck!! BTW- I haven't been an RN for two years yet- so my CL jobs were obtained as a new grad. You can do this!!