Here are two new social media/internet campaigns that depend on internet and social media users to spread the word in order to win big.

The first is Yahoo!’s yodel contest, as explained by their official blog:

Today, we’re giving the Yahoo! yodel back to the people with the launch of Yodel Studio, a global casting call for the world’s best yodels. Yodelers who take us up on this challenge will personalize and reinterpret our yodel, competing for a chance to be featured in Yahoo!’s new global advertising campaign and on one of the world’s largest stages: the Yahoo! homepage. Your yodel will also be heard through the donation Yahoo! will make to local and global charities of your choice for each yodel submitted (up to $130,000).

Even though this is for a good cause, the massive amount of buzz this will surely generate around the internet probably doesn’t hurt either.

The next is a really new campaign for Butterfinger, starring Seth Green. This relies on social media, online games, blogging, and video.  As summarized in a press release on BusinessWire:

Someone has laid a finger on Seth Green’s BUTTERFINGER®. Nestlé USA today announced the launch of “Dude, Where’s My Bar?” an innovative online narrative game for consumers to help solve the mystery surrounding the October 2 theft of Green’s vintage Butterfinger bar. The “lite” alternate reality game starring Seth Green will call upon the clever, irreverent thinking of Butterfinger fans, as they compete to find and solve clues that could lead to the return of Green’s missing bar and a one-of-a-kind grand prize: a solid-gold Butterfinger bar worth $10,000.

This is definitely a fun, interactive campaign that will surely blow-up online, especially on Twitter and Facebook. I see a possible Seth Green/Butterfinger trending topic in Twitter’s future for sure. To partake in the fun and games, visit http://www.dudewheresmybar.com/