In many ways, 2009 was the year of the "a-ha!" moment for social media marketing. While many people long-involved with social media and word-of-mouth marketing knew it was only a matter of time for the masses to embrace this type of marketing, others were just starting to get their arms around the importance of establishing and leveraging their social footprint to build engagement, dialogue, and awareness.

As more companies, brands, and individuals are building their social media presences, the universe of online tools -- which used to be somewhat more limited -- continues to expand on a daily basis. Not only do we have more choices in how we place content and measure social media, but the tools available to us also change and improve just as frequently.

To provide a little background on me: I run a social media marketing agency (KARMA Media Labs) that helps organizations and individuals connect with their target audiences and build word of mouth in the communities where they live. In order to find these audiences and strike a chord, it's important to be armed with the right tools to listen to what is being said, find the right influencers, communicate with your audience in a way that is relevant, and provide content that is likely to be shared.

The following is a list of some my favorite tools and sites -- some free, some paid -- that have been worth their weight in gold in not only finding that desired audience and key influencers, but also putting the right content in front of them to build conversation and word of mouth.