2018-09-11 海外の洋書要約サービス(英語) WEBサービス 英語 No1 www.blinkist.com No2 www.getabstract.com 参考 https://www.quora.com/What-are-the-best-book-summary-websites-Are-any-of-the-paid-sites-worth-the-money-Do-you-have-any-personal-summaries-to-share https://www.quora.com/What-are-the-best-book-summary-websites-Are-any-of-the-paid-sites-worth-the-money-Do-you-have-any-personal-summaries-to-share