I’ve come across plenty of Bootstrap related resource sites. The most recent one is bootsnipp.com, which focuses on individual snippets instead of over all themes. While not all of their current snippets are great, I think this idea has merit.
A repository of common quality HTML widgets (widgets doesn’t feel like exactly the right word, but it gets the idea across) would work towards the over all goal being able to put together a decent looking page with little work. At the same time still making it easy to tweak by keeping things at the HTML level instead of hidden behind additional abstraction layers.
Bootsnipp.com also hosts simple form and button builders. There are other options for full featured page builders that use Bootstrap, these two builders are good for light weight, quick items.