Butter is a modern blog alternative. It's designed to be the best blog cms solution for any company with a Rails or Django application that also needs a blog.
The reason we're building Butter is because at the end of the day everyone wants a company blog that:
1) Is simple and fast to setup
2) Will look great and match your brand, forever
3) Uses the same technology as your main site, the same one that your engineers and designers enjoy working with
4) Has fantastic SEO because it's incredibly fast and your blog can reside at http://example.com/blog instead of resorting to http://blog.example.com
This is precisely what Butter offers.