The best stories across the web on media and technology, curated by Lily Leung.

1. Warren Buffett says he may buy more newspapers (Telegraph)

2. Revenue at Washington Post’s newspaper division down 8 percent from last year (Poynter)

3. Tumblr’s first copyright lawsuit (PaidContent)

4. Why kids’ e-book sales are surging (PaidContent)

5. Wemple: Politico fosters “post-first, check-later” attitude (Washington Post)

6. Storify is used by 22 of the top 25 U.S. news sites, company says (Adweek)

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