$ sudo gem sources -r http://gems.datamapper.org
Bulk updating Gem source index for: http://gems.rubyforge.org/
ERROR: While executing gem ... (Gem::RemoteSourceException)
HTTP Response 404 fetching http://gems.datamapper.org/yaml
$ sudo nano ~/.gemrc
The Art of Simple Questions: How Simple Questions Lead to Great Innovations - There is a myth that successful companies begin with grandiose ambitions. The implication is that entrepreneurs should start with megalomaniac goals in o...