Here's a link to the site for more information:
I'll use the polling numbers of the early voting states.
California 2007 January-June
32%--27%--25%--27%--25%--22% basically a down trend
Iowa 2007 January-June
17%--19%--20%--20%--19%--18% a slight uptrend, then back down
New Hampshire 2007 January-June
22%--23%--23%--22%--21%--21% a very slight tick up, then down
South Carolina 2007 January-June
12%--25%--24%--27%--26%--25% a huge rise, then small trend down
Florida 2007 January-June
13%--14%--15%--17%--18%--17% a small rise, then a slight trend down
New York 2007 January-June
13%--12%--14%--16%--13%--12% a small trend up, then back down
I bring this up because I think they point out an interesting fact as it relates to the Obama campaign. While raising nearly record breaking amounts of money during the 2nd quarter, he has shown down trends in all of the early states during that same quarter.
I don't think you can claim he is not a known name anymore. So, what accounts for the down trends in the polls while raising money? My opinion (and it's just mine) is this:
Barack Obama has a large number of people who support him intensely and fervently. But, this group, though large in terms of donor numbers, does not translate into people willing to say they would vote for him when polled. Obama has underperformed in the three major debates/forums. Maybe it's not his venue, but it's the one he has available to win people over. He's not doing that. His campaign has tried some questionable tactics to undermine others in the race and that has backfired.
All of this has put him where he is today - firmly in second place - all that money not withstanding. After all he's not going to buy the election and we Democrats wouldn't want that anyway.
Where he goes from here is anybodies guess. But, if things don't change he won't be the nominee in 2008.