"Yahoo! (YHOO - Cramer's Take - Stockpickr - Rating) looks like a good takeout target for a newly assertive Microsoft (MSFT - Cramer's Take - Stockpickr - Rating), Jim Cramer said Friday on CNBC's 'Stop Trading!' segment. Cramer said Microsoft's $6 billion acquisition of aQuantive (AQNT - Cramer's Take - Stockpickr - Rating) is 'such an overpay' that it unmistakeably sends the signal that Microsoft plans 'to consolidate everyone' in the online advertising sector. Cramer said this move may well be 'the beginning of the land grab against Google (GOOG - Cramer's Take - Stockpickr - Rating).' "