Springpad, a six-year-old Boston-based cloud note-taking service best described as a mix between Evernote and Pinterest, might be packing up its notebooks for good. A report from The Verge, released Thursday afternoon, says that the company will be closing its doors soon, citing an anonymous source and sparse activity from the company’s social accounts. Raising roughly $7 million since it was launched in 2008, Springpad announced late last year that it was headed towards the 5 million registered user mark — a respectable but very small number compared to Evernote’s 75 million users. The report doesn’t list any timeline for when the service will phase out. Springpad declined to comment about the story.