ComScore just released a report today that, to me, says Barack Obama's support is much broader than Hillary Clinton's - at least, that's how I read the numbers although that's not how ComScore reported it.

"…Younger Visitors Favor BarackObama.com

With 33 percent of visitors to BarackObama.com under the age of 35, as compared 19 percent of visitors to HillaryClinton.com, Senator Obama’s site is clearly attracting a younger online audience.  Most notably, visitors between the ages of 18-24 were 48 percent more likely than average to visit Obama’s site, indicating a strong affinity for Senator Obama among the college-aged crowd.  "

"…HillaryClinton.com Draws Heavier Interest among Wealthiest Households

Both sites attract visitors from higher-income households, but the wealthiest households – those with at least $100,000 in annual income – were 57 percent more likely than average to visit HillaryClinton.com and just 18 percent more likely to visit BarackObama.com. 

Both Clinton and Obama were also more likely than average to draw African-American visitors.  Specifically, African-Americans were 20 percent more likely than the average Internet user to visit HillaryClinton.com and 127 percent more likely to visit BarackObama.com."

Here's a modified chart of what ComScore presented showing how voters in different income levels responded to each of the two websites.

Demographic Profile: Visitors to BarackObama.com vs. HillaryClinton.com
Feb-07
Source: comScore Media Metrix
	HillaryClinton.com		BarackObama.com
	Percent Composition	Composition Index*	Percent Composition	Composition Index*
Household Income	100	100	100	100
Under $25,000	r="#333333" face="Arial">5.8	63	12.2	131
$25,000 - $39,999	4.5	48	6.7	72
$40,000 - $59,999	22.5	79	27.7	98
$60,000 - $74,999	10.8	89	13.5	111
$75,000 - $99,999	20.6	114	12.9	71
$100,000+	35.8	157	27	118
Race	100	100	100	100
Caucasian/White	92.2	101	87.4	96
African-American/Black	6.5	120	12.3	227
Asian	0.3	15	N/A	N/A
Other	1	69	0.3	19

The way I see it - the more groups you have voting for you - the more likely you are to win.

But we'll see what happens in the future - 2008 is still a while away, but it is coming up quickly and will be here before we know it.