What social media monitoring tool do you use? CoTweet? TweetDeck? HootSuite? Seesmic? Have you ever wondered who else uses the tools you use? OneForty and KissMetrics got together to find out which social media monitoring tool is best, and how marketers, entrepreneurs, PR folks and consultants are using them.

Oneforty surveyed 150 social media professionals to find out how they used social media monitoring tools, and worked with KissMetrics to put their responses into infographic form.

There’s a lot of information packed into this infographic, and it should give you an idea about where you stand in terms of how much you spend on social media monitoring tools, which ones others prefer, and who else uses them.

For instance, the majority (42.9%) of people who purchase social media monitoring tools are social media managers. Next are agency professionals and consultants (19.3% and 17.1% respectively).

When asked to rate the different factors they considered when purchasing a social media monitoring tool, the average response placed the metrics it offered, the interface, and integration with different social networks as the top three most important factors.

And now for price (which I’m sure you were curious about): over half (54.7%) of the respondents said they pay $100 or less each month. About 20% pay between $100 and $500 each month, and another 20% pay between $500 and $5,000. Interestingly, 2.2% of respondents said that they pay over $10,000 or more each month on social media monitoring tools. Wow.

Ultimately, what everyone wants to know is which social media monitoring tool is the best. This infographic doesn’t quite go there, but it does show that almost exactly 50% of those surveyed use either a mobile app like TweetDeck, Tweetie or SocialScope, or a desktop client like Seesmic Desktop, TweetDeck or Tweetie.

You can browse the rest of the modules on this infographic for even more information about how people are using social media monitoring tools (click to enlarge):