The Internet being an interactive medium, it permits those who use it to take more personal involvement in current events. That in turn tends to generate more interest among those people in political affairs.
I don't think that politically it has provided a comparative benefit to either liberal or conservative views. The Internet itself is traditionally a libertarian virtual world, and so it has promoted that sociopolitical point of view. Unfortunately, or fortunately if you take a more institutional position, that culture is coming to an end as governments build up their surveillance practices and take more regulatory control over the Internet, and so in the near future not even libertarianism will continue to enjoy a political boost from this.
I'm not sure where the war in Wisconsin per se fits into this question, though. Could you clarify that?