I am planning to sell my Indian employment Law website (biblehr.com). The website is having 99% viewers from India and has around 7000+ subscribers. per day around it generates 4000+ pageviews, 1000~ users.
QuoteFactory creates inspirational quote images for businesses to post on social media. It is a huge business on freelancing sites like Fiverr. There has been a similar successful site like this that you can read about here: https://goo.gl/wqib5L
Search engine for programmers.
Recalll is search engine which enable you to search programming queries from q&a sites, specifically from stackoverflow and stackexchange.
Service to automatically convert your site to WordPress. We extract the site pages into a downloadable Wordpress.xml file. It also lets you create a customizable WordPress theme from existing site.