Its still early to call, but usually staying close to the winner is a good indication that his message is coming across.
There are also a few factors, one being that NH never votes the same as Iowa, plus the state has the largest base of independents, which means they could vote any way they like during the primaries whereas in NH they must vote in their establish caucases.
Another fact is that both states were highly concentrated in White people, so winning in one and coming in a close second in the other says something of what they see in him. In these cases, the black vote [as the media places it] wouldn't mean much because of the low numbers, it really starts to count when we look at states with higher concentrations and how they vote in turn.
Depending on your margin of victory in any primary, it tells how the voters might vote come election time and who should be nominated as their party's candidate. Seeing that the turnout of Black voters has increased in this decade, they are more concerned that we will vote for Obama simply because he is black or vote for the best candidate out there who happens to be black.
On the record, Hillary had to call in her prostitute to come to bat for her because of fears that they will lose, so now they will try anything to defame the man, but for the records as to what they have actually done on the Hill, they are closely similar with only minor differences, and her assertion as to never voting for funds for war, or the Patriot Act, or Voting for the war, are downright lies according to their voting record
http://www.senate.gov/legislative/LIS/roll_call_lists/vote_menu_109_2.htm
As with everything, do your own research as to who you should vote for other than popular demand, that way you at least know the devil in which you are voting for
