We talked, yesterday, about using PostRank to find out if your audience is engaged with your content. It’s useful, from a marketing perspective, to have your website visitors commenting, bookmarking and sharing your articles. PostRank gives you a measure you can use to see what’s working and what’s not.

It’s also important to know which visitors are your biggest supporters. I’m sure, in the off-line world, that you do your best to encourage positive word of mouth from former clients. Word-of-mouth is, after all, the most valuable form of marketing.

With social media, however, it can be challenging to figure out who’s talking about you. Of course, you’re searching on Google and Twitter for instances of your website URL. Sometimes, however, your visitors are sharing your content without using your URL. For instance, when a website visitor shares some of your content on Twitter they might share your article using a URL Shortener from a service like bit.ly. The Twitter posts of articles from this site are disguised by the goo.gl URL from Google. It’s not easy to find references to your site in the wild.

BackTweets is the solution to the problem. You can type your URL into BackTweets and will find all references to your site on Twitter regardless of which URL shortener was used to share your article. BackTweets somehow finds every reference to your site regardless of which shortener was used to create the link. Within seconds you’ll find every reference to your site on Twitter. Best of all, BackTweets is free.

Finding these links helps you identify your word-of-mouth promoters. Those people are important to your practice and should be treated with special care. BackTweets is a great way to figure out who’s out there helping you that might otherwise have slipped under your radar. BackTweets should, like PostRank, be in your marketing toolbox.