Merge pull request jwasham#224 from nandokakimoto/fix-dynamo-paper-link

Fix dynamo paper link.

Author: jwasham

README.md

@@ -1071,7 +1071,7 @@ You'll get more graph practice in Skiena's book (see Books section below) and th
     - [ ] [2006: Bigtable: A Distributed Storage System for Structured Data](https://static.googleusercontent.com/media/research.google.com/en//archive/bigtable-osdi06.pdf)
         - [An Inside Look at Google BigQuery](https://cloud.google.com/files/BigQueryTechnicalWP.pdf)
     - [ ] [2006: The Chubby Lock Service for Loosely-Coupled Distributed Systems](https://research.google.com/archive/chubby-osdi06.pdf)
-    - [ ] [2007: Dynamo: Amazon’s Highly Available Key-value Store](https://www.akkadia.org/drepper/cpumemory.pdf)
+    - [ ] [2007: Dynamo: Amazon’s Highly Available Key-value Store](http://s3.amazonaws.com/AllThingsDistributed/sosp/amazon-dynamo-sosp2007.pdf)
         - The Dynamo paper kicked off the NoSQL revolution
     - [ ] [2007: What Every Programmer Should Know About Memory (very long, and the author encourages skipping of some sections)](https://www.akkadia.org/drepper/cpumemory.pdf)
     - [ ] [2010: Dapper, a Large-Scale Distributed Systems Tracing Infrastructure](https://research.google.com/pubs/archive/36356.pdf)