I first came across Alianzo at a Thursday event run by the great Ilde Mayorgas back in 2005, just after it was born, so a lot of water has passed under the bridge since then, but above all Alianzo has evolved, and a great deal.
As soon as I had a blog I signed up on their website to have it registered and track its progress, and a few months ago I discovered Alianzo Rank, a really powerful tool for measuring not only the influence of blogs but also that of bloggers, professionals and brands on the main social networks: Facebook, Twitter, LinkedIn, YouTube, Google+, Tuenti and Foursquare.
The Premium version is worth it, as it lets you build your own rankings; I, for example, have set up a couple of them on entrepreneurs.
On the one hand you see your position in the Alianzo General Ranking, and then on the other social networks, so you can take your temperature on each of them: whether you have gone up or down and how you compare with other people or brands globally, nationally, regionally, by city, by profession and by language.
What I like most is the ability to run precise searches for, say, the best blogs in the USA, in the California region, in the Entrepreneurs and Geeks category, in English.

When it comes to finding the best influencers it is perfect: as in the example above, it lets you locate professionals by geographical area, by several categories at once and by language. Once you have the ranking in front of you, you can go through them one by one, visiting their different social profiles, recommending them, becoming a fan or following them.
For you and your company it is ideal, as you can create several profiles and track their progress, their 2.0 temperature. I have my personal one with my different social profiles and, of course, the one for the company I work for, AJE Madrid.
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