Updated below: Health information social networking site DailyStrength has been acquired by HSW International, the digital content company that is a spinoff from HowStuffWorks.com (which later got acquired by Discovery Communications). Terms of the deal were not disclosed.

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DailyStrength raised a seed money and a first round, both from Redpoint Ventures, and the total funding range was around $7 million. The site was launched in March last year, by CEO Doug Hirsch, a former senior exec of Facebook and one of the first employees of Yahoo. It hosts about 500 communities focused on issues such as weight loss, divorce, parenting and illnesses. Hirsch will join HSW International as SVP with responsibilities including DailyStrength and the company’s social media strategy.

HSWI is focused on China and Brazil markets, as the exclusive licensee of content from HowStuffWorks. This deal will bring a lot of HSWI content into DailyStrength’s website, among other synergies. More details in release.

Update: A commenter below alerts us to the SEC filing which details the sale price: HSWI paid $3.125 million in cash, and will pay another amount of up to $3.525 million, based on pageviews increase (interestingly, not based on revenues, but only pageviews increase).