List of engineering blogs

I have a big list of blogs that I follow, and the most useful subset is the engineering blogs of companies. There you can find a lot of interesting things about the technologies they are using and how they solve different problems. So, here's the list (in no particular order):

• Code: Flickr Developer Blog
• Etsy
• YouDevise Developer blog
• Foursquare Engineering Blog
• BackType Technology
• Foursquare Blog
• The Twitter Engineering Blog
• Engineering @ Facebook's Facebook Notes
• The Netflix Tech Blog
• Twilio Engineering Blog
• bizo developer blog
• SimpleGeo · Developers
• LinkedIn Engineering - Blog
• IMAX
• Adku
• Mixpanel Engineering
• mgm technology blog
• Stephen Colebourne's blog
• Engineering Rapleaf
• Sematext Blog
• Neo4j Blog
• Linode Blog
• Amazon Web Services Blog
• Simplegeo
• Facebook developer blog
• Server Fault Blog
• Lucid Imagination
• Instagram Engineering