Building a news feed

Part 1, 2 .
Read about fb edgerank algo here. This gives an idea about what factors needs to be considered when designing a social news feed.

A basic start – Considering a few cases.

The approach that fb and twitter follow.

This may be helpful. Read this after sharding.
https://www.infoq.com/presentations/real-time-twitter#downloadPdf

Other nice articles about news feed – http://blog.getstream.io/5-brilliant-articles-about-newsfeeds-activity-streams/

How twitter scaled – challenges – Slideshare

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