It's all about discovery. You like XYZ pizza; how many places did you try before finding them? How did you find XYZ pizza? Thats where these gatekeepers thrive.

It's all about discovery. You like XYZ pizza; how many places did you try before finding them? How did you find XYZ pizza? Thats where these gatekeepers thrive. Its the same as yahoo/altavista/google.