Eating your own dog food, also called dogfooding, occurs when an organization uses its own product. This can be a way for an organization to test its products in real-world usage. Hence dogfooding can act as quality control, and eventually a kind of testimonial advertising.
Tetsuro Watanabe 
ふらまっきぃ 
カワシマヒロキ（ひーさん） 
山田 武彦 
ブログル開発チーム 
豆腐 
Belize 
天使 
神戸のおいさん