While Wales wants to keep Wikipedia free of ads and corporate influence, others say that this is exactly what the site needs to grow and ensure its financial stability. Weblogs Inc. CEO Jason Calacanis has been harping on Wikipedia for months, arguing that the encyclopedia could rake in as much as $100 million a year with only minimal advertising.
I love Wikipedia and reference it daily, but its hard to not disagree with Jimmy. The intentions are good and I am sure a lot of people agree with him, but advertising as mentioned above would take care of all the financial worry. On top of that, potential new employees could be hired too help things progress even further. Ads seem like an inevitability.
Source: Ars Technica