Everything was extremely unorganized from the get-go, I don't think I've had a more negative interviewing experience. I was internally referred by a previous intern, then I was set up with an initial phone interview with a hiring manager. Things went extremely well and she invited me to a second round on-site interview. Since our phone conversation, there was no follow up or anything for over a week - so I followed up. In the meanwhile, there was a campus recruiting even where I reconnected with them and was invited to a networking dinner that evening. After that, three weeks later a recruiter finally reached back out to arrange my on-site. Even though I am a UX/UI Designer, they had sent me all this information about being a Technical New College Grad applicant - basically grouping me completely incorrectly. So during my on-site I interviewed with the Homepage team but they thought I was a programmer. I am also based out of Los Angeles, and they flew me to Sunnyvale for my 3 'on-site' interviews but one of my interviews was a conference call to a guy in Santa Monica... Los Angeles. So pretty much 1/3 was a complete waste of an 'on-site' purpose (and in my opinion, a waste of time)... As for the other two interviewers, one couldn't have seemed less interested. It seemed like I was originally scheduled with his boss but he got pulled in/switched at the last minute - so my interviewer basically came to the interview with zero questions prepared. The third interviewer was in a completely different team entirely, and again thought I was technical. At the end of the day we were told they would get back within 7-10 days. I interviewed on November 1st, and didn't officially hear back until December 3rd. I had to follow up several times and even find out through a different recruiter because everyone else was clueless and unresponsive. To top things off, they haven't reimbursed my (very few) travel expenses yet and it has been almost 2 months. They finally submitted my payment so it's only just processing now. There was no transparency or organization among recruiters, the team, hiring managers or the interviewers. It was a disaster.
Update: (1/6/2014) my reimbursement finally came, after interviewing on November 1st (2013), Yahoo finally reimbursed interview expenses... it took 2 months. I cannot express more dissatisfaction with organization at such a big corporation.