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Slide Rule — Startup Profile
Startup

Slide Rule

Your online learning hub.

Courses & tutoring

Among 1,161 Courses & tutoring products tracked by Astracia.

About the startup

Your online learning hub.

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Varsity Tutors

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Added to this directory in the past 30 days. Dates refer to the directory listing, not the product launch.

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Profile

ExplainingComputers

Weekly videos on computing and related topics.

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Renate Samson

Longtime policy wonk, consultant, researcher and speaker about the impact of data driven tech and AI.

Media about Education & Research

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Shows and channels grouped by topic. A recommendation does not mean this profile was featured or endorsed.

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Retold founder accounts from startups in the same category, each linked to the original.

Story

Drip's Leadpages deal was a 13-month acquisition, not a revenue chart

Rob Walling used Startups for the Rest of Us episode 298 to describe Drip's sale to Leadpages as a long strategic acquisition, and he kept purchase price and recurring revenue off the record.

Pat Flynn's first product month was $7,906.55, a year and a half after the study blog

Pat Flynn says he was laid off as an architect in 2008, then sold a LEED-exam ebook into traffic he had already built; October's $7,906.55 was the first month with his own product, not the first month the site existed.

Tiago Forte scaled Building a Second Brain as live cohorts, then stopped teaching them himself

A 2022 Disco case study describes Tiago Forte taking Building a Second Brain to a fifteenth cohort and thousands of learners by iterating live, then his January 2023 post says he taught 16 cohorts and would not teach the

Ship 30 for 30 started as a $50 Slack challenge, not a later AI newsletter

Dickie Bush says Ship 30 for 30 began in November 2020 when he asked about 500 followers to write daily, had 50 people in Slack six days later, and later wrote with Nicolas Cole that they had taught 10,000-plus students

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Subcategories in the same part of the directory, with the number of listed products.

Category

Study tools & assessments

1,083 listed products

Language learning

1,008 listed products

Course authoring & LMS

198 listed products

Research & laboratory tools

171 listed products

School & student management

167 listed products

Libraries & academic resources

72 listed products