diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -353,18 +353,19 @@ of the testing and deployment process.
 ### Articles & Papers
 
 - [AKF Scale Cube](http://akfpartners.com/techblog/2008/05/08/splitting-applications-or-services-for-scale/) - Model depicting the dimensions to scale a service.
-- [CALM](http://db.cs.berkeley.edu/papers/cidr11-bloom.pdf) - Consistency as logical monotonicity.
+- [CALM](http://db.cs.berkeley.edu/papers/cidr11-bloom.pdf) - Consistency as logical monotonicity. [:small_orange_diamond: *PDF*]
 - [CAP Theorem](http://blog.thislongrun.com/2015/03/the-cap-theorem-series.html) -  States that it is impossible for a distributed computer system to simultaneously provide all three of the following guarantees: Consistency, Availability and Partition tolerance.
 - [Cloud Design Patterns](https://msdn.microsoft.com/en-us/library/dn600223.aspx) - Contains twenty-four design patterns that are useful in cloud-hosted applications. Includes: Circuit Breaker, Competing Consumers, CQRS, Event Sourcing, Gatekeeper, Cache-Aside, etc.
 - [Hexagonal Architecture](http://alistair.cockburn.us/Hexagonal+architecture) - Allows an application to equally be driven by users, programs, automated test or batch scripts, and to be developed and tested in isolation from its eventual run-time devices and databases.
-- [Microservice Architecture](http://martinfowler.com/articles/microservices.html) - Particular way of designing software applications as suites of independently deployable services.
+- [Microservices Architecture](http://martinfowler.com/articles/microservices.html) - Particular way of designing software applications as suites of independently deployable services.
 - [Microservices and SOA](http://www.oracle.com/technetwork/issue-archive/2015/15-mar/o25architect-2458702.html) - Similarities, differences, and where we go from here.
 - [Microservices RefCard](https://dzone.com/refcardz/getting-started-with-microservices) - Getting started with microservices.
-- [Microservice Trade-Offs](http://martinfowler.com/articles/microservice-trade-offs.html) - Guide to ponder costs and benefits of the mircoservices architectural style.
+- [Microservices Trade-Offs](http://martinfowler.com/articles/microservice-trade-offs.html) - Guide to ponder costs and benefits of the mircoservices architectural style.
 - [Reactive Manifesto](http://www.reactivemanifesto.org/) - Reactive systems definition.
 - [Reactive Streams](http://www.reactive-streams.org/) - Initiative to provide a standard for asynchronous stream processing with non-blocking back pressure.
+- [ROCAS](http://resources.1060research.com/docs/2015/Resource-Oriented-Computing-Adaptive-Systems-ROCAS-1.2.pdf) - Resource Oriented Computing for Adaptive Systems. [:small_orange_diamond: *PDF*]
 - [SECO](http://ceur-ws.org/Vol-746/IWSECO2011-6-DengYu.pdf) - Understanding software ecosystems:
-a strategic modeling approach.
+a strategic modeling approach. [:small_orange_diamond: *PDF*]
 
 ### Tutorials
 
@@ -376,7 +377,7 @@ a strategic modeling approach.
 
 ### Books
 
-- [Building Microservices](http://nginx.com/wp-content/uploads/2015/01/Building_Microservices_Nginx.pdf) - Building Microservices: Designing Fine-grained Systems. Sam Newman. Preview Edition.
+- [Building Microservices](http://nginx.com/wp-content/uploads/2015/01/Building_Microservices_Nginx.pdf) - Building Microservices: Designing Fine-grained Systems. Sam Newman. Preview Edition. [:small_orange_diamond: *PDF*]
 - [The Art of Scalability](http://theartofscalability.com/) - The Art of Scalability: Scalable Web Architecture, Processes, and Organizations for the Modern Enterprise. Martin L. Abbott, Michael T. Fisher.
 
 ### Sites