If you need advanced notice that the internet’s importance will continue to grow in campaigning, here it is. AdAge, the well-known magazine that reports analysis of marketing and media, completed a study that found the internet has passed TV as an information source for voters under 30.

While many political strategists dismiss youth vote trends, due in large part to their historically low turnout, those young voters will carry the internet with them over the years. Not only that, but as with other studies on Internet usage, the Web moves quickly across age brackets.

For instance, AdAge reports that 26% of all voters — regardless of age — have viewed a political candidate’s profile on a social networking site. This is an indication that the trend is already expanding beyond the 30 and under crowd. The need for a strong web presence may be a lesson that becomes more clear in coming election cycles.