Internships are very important for securing a job. It shows first of all that you have had experience in industry and have learned some things which you can apply to your next position. Next it shows that you have desire to pursue a career in that area and if you take on a meaningful project then you can use that specific project to a great extent for your interviews for the new job. I have used my past internships as my main focal point when talking to employers. Mostly I talk about the work I did and the reviews I got. Also lots of companies now assume you should have an internship before you get a job.