Based on Osterwalder's 9 segment business model canvas. Occasionally updated with new company business model analyses.

AIRBNB

Value Proposition: (1) great places to stay worldwide at affordable prices, (2) rent out extra place for $
Customer segments:
 (1) travelers looking for good deal; (2) property owners who want to generate income
Revenue Streams: (1) 6-12% of booking fees (2) 3% of each successful booking
Customer Relationships: self service with reputable, responsive support team (desktop, mobile, SMS), information security, rankings/reviews, promotional campaigns for loyal users, political involvement
Channels: website, blog, facebook page (main & engineering), YouTube channel
Key Activities: platform development, community management, marketing, photography service management, online/international payment, data analysis
Key Resources: community of travelers and hosts, brand, platform
Key Partners: local hosts, VC’s, local photographers, insurance
Cost Structure: insurance, human resources, servers, online/international payment, photographers, marketing

TWITTER

Customer segments: users, enterprises/agencies, developers, advertisers/marketers
Value Proposition: social connection: power to create and share ideas instantly, news, targeted marketing, twitter apps, online reputation, communication: messaging
Revenue Streams: promoted accounts/tweets, analytics, licensing data streams
Customer Relationships: analytics, survey/polls, political influence
Channels: website, mobile app, SMS, Twitter API
Key Activities: platform development, algorithm improvement, community management
Key Resources: twitter.com platform, tweets, big data
Key Partners: search vendor, media companies, content partners, acquisitions (Periscope, Vine), mobile devices
Cost Structure: employees, servers, real estate: offices, R&D, acquisitions

THUMBTACK

Customer segments: (1) contractors, professionals; (2) customers
Value Proposition: fair quotes, good service, convenience
Revenue Streams: augmented lead generator
Customer Relationships: word-word-of-mouth
Channels: direct, marketing
Key Activities: design, software engineering, recruiting, customer support
Key Resources: offices, funding
Key Partners: contractors, professionals
Cost Structure: marketing, logistics

PELOTON

Customer segments: upper-middle class, enjoys working out, own schedule
Value Proposition: status, motivation/gamification, personalization, trainers
Revenue Streams: $2k upfront, $40/month, merchandise, [lifetime value analysis of 2 years] $3k
Customer Relationships: get-keep-grow, personal service model, long term relationship with trainers
Channels: direct, marketing
Key Activities: design, software engineering, recruiting
Key Resources: shop, funding
Key Partners: manufacturers
Cost Structure: manufacturing/inventory, customer acquisition, logistics, content developers