add some websites and engineering blog

README.md

@@ -185,6 +185,39 @@ Recommended: MIT – **Hacking a Google Interview** [[web][q_hgi]]
 * [How should I prepare system design questions for Google/Facebook interview?](http://www.quora.com/Job-Interviews/How-should-I-prepare-system-design-questions-for-Google-Facebook-Interview)
 
 
+**Websites and Engineering Blogs**
+* [High Scalability](http://highscalability.com/)
+* [The GitHub Blog](https://github.com/blog/category/engineering)
+* [Engineering at Quora](http://engineering.quora.com/)
+* [Yelp Engineering Blog](http://engineeringblog.yelp.com/)
+* [Twitter Engineering](https://engineering.twitter.com/)
+* [Facebook Engineering](https://www.facebook.com/Engineering)
+* [Yammer Engineering](http://eng.yammer.com/blog/)
+* [Etsy Code as Craft](http://codeascraft.com/)
+* [Foursquare Engineering Blog](http://engineering.foursquare.com/)
+* [Airbnb Engineering](http://nerds.airbnb.com/)
+* [WebEngage Engineering Blog](http://engineering.webengage.com/)
+* [LinkedIn Engineering](http://engineering.linkedin.com/blog)
+* [The Netflix Tech Blog](http://techblog.netflix.com/)
+* [BankSimple Simple Blog](https://www.simple.com/engineering/)
+* [Square The Corner](http://corner.squareup.com/)
+* [SoundCloud Backstage Blog](https://developers.soundcloud.com/blog/)
+* [Flickr Code](http://code.flickr.net/)
+* [Instagram Engineering](http://instagram-engineering.tumblr.com/)
+* [Dropbox Tech Blog](https://tech.dropbox.com/)
+* [Cloudera Developer Blog](http://blog.cloudera.com/blog/)
+* [Bandcamp Tech](http://bandcamptech.wordpress.com/)
+* [Oyster Tech Blog](http://tech.oyster.com/)
+* [THE REDDIT BLOG](http://www.redditblog.com/)
+* [Groupn Engineering Blog](https://engineering.groupon.com/)
+* [Songkick Technology Blog](http://devblog.songkick.com/)
+* [Google Research Blog](http://googleresearch.blogspot.com/)
+* [Pinterest Engineering Blog](http://engineering.pinterest.com/)
+* [Twilio Engineering Blog](http://www.twilio.com/engineering)
+* [Bitly Engineering Blog](http://word.bitly.com/)
+
+
+
 ## Unix
 
 **Quora**