I had a tech phone interview with a software engineer position in the revenue group at LinkedIn. I was able to solve both problems asked by the engineer correctly. The problems were only of average difficulty. We used collabedit for the interview. The linkedin employee seemed to be satisfied with my solutions. A few days later I was told that they were going to pass on me with no feedback or reason explained to me. I learned (in part by recruiter) that they were learning to test/interview software engineers with my skill set. So I felt they were not honest and were basically using me as a guinea pig for their own selfish purpose even worse, collecting some interview data and possibly doing this to many other people interviewing for this fake position. Possibly they are developing some corporate tool and testing it with real people, gathering data, and making you believe you are really being considered for a software engineering position when you are not. LinkedIn, please be serious, stop playing games and stop wasting peoples time. Dont use real people as guinea pigs for your models, studies and/or corporate tools.