In the US, Klout – which measures influence across the social web – has secured $1.5m in funding in a Series A investment, to be used for promotion and expansion.

Using precise measurements of behavior, complex ranking algorithms and semantic analysis of content, San Francisco-based Klout measures the influence of individuals and topics around the web. Since its launch in 2008, the firm has registered more than 250,000 users and over 300 API partners, companies such as TweetUp, CoTweet, Live Intent, Hootsuite, BzzAgent, Trendrr and Viralheat.

‘This round validates our progress to date,’ said co-founder and CEO Joe Fernandez. ‘Influential individuals and companies drive new behaviors among their peers and across their social graph, and Klout helps capture and leverage that attention - whether you’re a consumer or a big brand, an application developer or a data-driven marketer.’

This first round of funding has involved participation from ff Asset Management, Allen Morgan and Nova Spivack, among others.

Web site: www.klout.com .

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