A few feedbacks

[SiqingYu]

These blogs are either moved or down:

• Data Artisans (https://data-artisans.com) now becomes Ververica (https://www.ververica.com/). The old site is down.
• https://deferpanic.com/blog/index.xml/ is replaced with https://nanovms.com/ which doesn't have an RSS feed
• DoorDash engineering blog is now at https://doordash.engineering/
• http://tech.gilt.com/ is now https://tech.hbc.com/ which doesn't have an RSS feed
• The company Grouper joingrouper.com shut down in 2016
• http://intentmedia.com/ is now at intent.com, but their new blog doesn't have any post yet.
• The Intercom blog feed is now at https://www.intercom.com/blog/engineering/feed
• http://sartorialscience.myntrablogs.com/ is down.
• http://pullreview.com/ is down. See: http://blog.8thcolor.com/en/2018/02/the-end/
• REA Group tech blog is now at https://www.rea-group.com/category/tech/
• Redbubble tech blog is now at https://medium.com/feed/redbubble/tagged/tech/
• Scrunch tech blog is now at https://blog.scrunch.com/product-updates/tag/tech-blog/rss.xml
• Snyk blog feed is now at https://snyk.io/blog/feed/
• Stormpath joined Okta and shut down.
• Target tech blog is now at https://tech.target.com/feed.xml
• VersionEye has shut down. See: https://blog.versioneye.com/2017/10/19/versioneye-sunset-process/
• Vine has been archived.
• wearewizards.io is down.
• Wolox is now at https://medium.com/wolox-driving-innovation
• https://engineering.zenefits.com/feed/ is no longer available.

These blogs are not engineering blogs but instead product promotion or non-technical blogs; they shouldn't be in the list:

• https://gocardless.com/blog
• https://developers.livechatinc.com/blog/
• https://devs.mailchimp.com/blog
• http://blog.mandrill.com/
• https://www.maptiler.com/blog/
• https://www.memsql.com/blog/
• https://mixmax.com/feed/
• https://blogs.nvidia.com/
• https://developer.okta.com/
• https://www.periscopedata.com/blog
• https://postmarkapp.com/blog
• https://www.pubnub.com/blog/
• https://realm.io/blog/
• https://www.runtastic.com/blog/
• https://developer.salesforce.com/blogs/
• https://www.semantics3.com/blog/
• https://www.sharethis.com/feed/
• https://www.stridenyc.com/blog

[kilimchoi]

@SiqingYu Thanks will update