Which Meta Search Engine do you like ?

[samsam]

Yahoo is just Bing wearing a different hat, so your "three engines" are really two, and you're treating a toy like a rank tracker.
One IP, no geo-targeting, a personalized SERP, and zero data worth putting in a client report. If googlebye is your core tool, your indexation audits are guesswork. Use Boardreader for forum footprints and call it a day.