Guys, I don't think you're looking at this objectively. Try googling Ron Paul - hundreds of news items from just the alst few week. He's been all over the place on TV and has had storied on the major networks and in major papers. He's getting plenty of attention,a dn actually quite a lot for a candidate who has a donut shop amongst his top twenty financial contributors.
The practice of giving minor candidates less time and questioning in debates is very standard. The fact is, even though you all really like him, he is not a strong or realistic contender for the presidency. I'm not saying this out of personal bias. I've worked in politics and have been a student of political science and elections for many years, and the odds against Ron Paul are huge. The online polling thing is interesting, but it's not really an indicator of how greater America feels, nor their awareness of Ron Paul. The libertarian activists are very organized and focused around internet promotion, and this tends to inflate his numbers as not very many people participate in the online polling and Ron Paul's supporters are not actively organizing amonst themselves to participate in order to raise his media profile.
The thing with the polling is A) we're a long ways away from an actual election when the people tend to be more open-minded and embrace fringe candidates, and B) on the Democratic side fringe candidates like Al Sharpton or Dennis Kucinitch have done very well in the past, but failed to do anything electorally. People don't chaulk this up to a conspiracy, it's just an indicator of the misleading nature of polls in terms of evaluating broad, mainstream support.
Unfortunately, these same people ignore the thing that would really help his campaign - money. I don't ahve the link handy, but a few weeks ago I looked at a listing of Ron Paul's top campaign fundraising, and it was dismal. AMongst his top donors was a donut shop. For better or worse (well, probably worse), money is one of the most important factors in a presidential race and you really can't run a successful campaign without lots of it. Ron Paul's opponents will raise tens of millions of dollars; the top Democrats will raise over a hundred million each. I think Ron Paul hadn't even cracked $100K when I checked out his profile. TV advertising and space in large media markets is a major factor in presidential elections, and Ron Paul simply won't be able to compete in this area without exponentially larger fundraising ability.
All things considered, he's recieving a ton of attention. One other thing to remember though, is that he's getting a lot of mileage out of his anti-war stance, something none of the other Republicans share. Being the sole conservative candidate against a war that has humiliated the GOP and become unpopular with their base is a popular advantage that takes the focus off of Paul's other attributes and policies. Ultimately, if he had voted for the war or was currently pro-war, he would be entirely ignored.