Put yourself out on the job market and see if you can get a salary increase. Do up your CV, research what you want to do and what companies and jobs are out there, get applying. Even if a company doesn't advertise a job opening it is a good idea to contact the HR department and get in their books, maybe even try and organize an unofficial interview.
Maybe you need to learn new skills, think about some extra courses at college, IT accreditation, going to Uni to get a BSc or if you have one perhaps a masters.