Things I do/am interested in
- Space, Astronomy, Physics, Science in general
- Japan, Japanese language/culture
- Programming in C, Ruby and Haskell
- Building fun things with microcontrollers
- Science fiction novels, older the better
- Arduino tutorial website, income from affiliate links to electronics suppliers and premium tutorials.
- The same as above but marketed as embedded programming tutorials. More professional in nature.
- Online Physics/Science learning resource with exercises, paid for like a SaaS.
- Sci-fi novel review blog, money coming from amazon associate links.
- Online novel-writing software, like Scrivener, could allow you to export your book as a PDF, various formats, manuscripts, epub etc. Built-in support for code samples? Easier editing/collaboration tools?
- Data gathering software for clinical trials, trials that require survey forms completed are apparently done for the most part on paper. With the right marketing a simple crud app with an API could solve the inherent problems.
- Scheduling software for consultancies, we could call it PersonDays.
- Checklists, a web application that allows you to create/manage checklists. Focused on building processes rather than simple todo lists.
Ideas I've thought about a little more
Read Japanese Online - graded Japanese reading material
Grab real-life Japanese novels/short stories from Aozora Bunko (the Japanese Project Gutenberg), run each story of them through a morphological analyzer, grade them on difficulty and present them to Japanese language learners as a series of lessons. Sell it as a SaaS for say $20-$30 per month.
Productive Vim - ebook about the vim text editor
An ebook on using vim productively, covering techniques and tricks for making the most of vim for developing dynamically typed languages like ruby/python. Around 100 pages, sold for $30-$40.
Haskell For Rubyists - ebook about learning Haskell for ruby programmers
Ebook about learning the crazy stuff in Haskell geared towards ruby programmers who are already somewhat comfortable with a few functional concepts. Same sort of pricerange, $30-$40 for about 100 pages.
GetBooked - Like Highrise but for small freelancers (rather than professional salespeople)
Not sure how exactly this is going to be better than Highrise, but I'm thinking something a little simpler with a fun interface, a bit like freckle for your sales process.
Robot Tutorial Site - A site collating high-quality arduino/robotics tutorials
I like this idea! High quality tutorials, with clean code samples and an easily orderable BOM with affiliate links. More intense tutorials could be paid for via a SaaS model (like Destroy all Software).