I also had this on a job interview and I found this answer on my search: ■Web Search ■News Search ■Image Search ■Music Search ■Map Search I hope this helps.
Major internet advertising verticals include the straight facts which can be caused directly from the internet advertising. ·Web users have more control over their viewing environment ·It is less intrusive ·It is more inviting and it is also more controllable ·It is cheaper than traditional ads ·It gives the way of targeting an ad population (a niche)