Deconstructing Excellence: Summaries are 8 – 12 pages long, on average. Each summary is also interspersed with references and links to similar content from other sources about the author’s points. Here are a few examples:
BOOKS | Derek Sivers: Derek Sivers posts his notes on each book he reads. They are free form notes, as opposed to a summary format, but there are a large number of books covered.
Actionable Books: Large selection, well organized, but less detail. Each summary has a few “gems” from the book, but doesn’t usually give you the full story.
WikiSummaries: Medium selection, variety of genres. Anyone can edit, so quality is a bit variable.
Book Video Club: Five-minute VideoScribe videos. The compressed time frame and video format means that you won’t get as much detail, but the videos are well-done and will give you the main points.
Blinkist: $40/year. Very user-friendly format.
GetFlashNotes: $29/month. You also get two free summaries up front, and it’s $1 for the first month.
Readitfor.me: $29.99/month or $299.99/year. Includes written summary, audio, and video.
Soundview Executive Book Summaries: Annual subscriptions run from $99 to $229 for various combinations of features.
Knowlla: Animated video summaries for $27/month or $250/year.
BizSum.com: $69 for six months, $99/year, or $9.95 for each individual summary. Database of 2,300 summaries.
Thebusinesssource.com: $130 for two summaries per month, including five minute videos. Various other plans up to $695 for immediate access to up to 200 additional summaries.
Summaries.com: Several different pricing plans, but it ends up being $2 – $3 per summary. You can see their complete catalog here.
GetAbstract.com: Also has several different pricing plans; I’m guessing most people go with the $179 for six months option.
Amazon.com: You can search Amazon and buy book summaries individually (usually $1 – $3), or subscribe to Kindle Unlimited for $9.99/month and get some of them without paying any extra.
Related (and free):
Farnam Street: Excerpts from related books revolving around similar insights. One of my favorite sites.
Brain Pickings: Diverse variety of subjects – fiction, romance, literature, history, etc.