##ARTICLES & TALKS##
[Handwritten parsers & lexers](http://blog.gopheracademy.com/advent-2014/parsers-lexers/)
An excellent introduction to writing parsers and lexers
[Go: Array Internals, The Call Stack and Pass by Value](http://www.geekgirl.io/grokking-go-array-internals-the-call-stack-and-pass-by-value/)
An in-depth look at some of the Go runtime's internals
[Probabilistic data structures for Go](http://blog.gopheracademy.com/advent-2014/go-probably/)
An interesting post by Damian Gryski on implementing probabilistic data structures
[When in Go, do as Gophers do](http://talks.golang.org/2014/readability.slide#1)
A talk on readability by Fumitoshi Ukai, an engineer on the Chrome Infra team
[Interface "upgrades" in Go](http://avtok.com/2014/11/05/interface-upgrades.html)
An interesting post looking at interfaces and conversions
[Optimizing Go: from 3K requests/sec to 480K requests/sec](https://www.hakkalabs.co/articles/optimizing-go-3k-requestssec-480k-requestssec)
Ashish Gandhi provides details on optimising a service at CloudFlare
[An incomplete list of Go tools](http://dominik.honnef.co/posts/2014/12/an_incomplete_list_of_go_tools/)
A good roundup of the ecosystem of tools available for Go
[Making a RESTful JSON API in Go](http://thenewstack.io/make-a-restful-json-api-go/)
A good starter article on building a simple API
##NEW & UPDATED PACKAGES##
[antonholmquist/jason](https://github.com/antonholmquist/jason)
An easy-to-use JSON package
[mitchellh/ioprogress](https://github.com/mitchellh/ioprogress)
A package for progress bars around io.Reader/Writers
[vektra/vega](https://github.com/vektra/vega)
"The focus of Vega is to provide a resilient, trustworthy message delivery system."
[surge/surgemq](https://github.com/surge/surgemq)
MQTT broker, decoder and encoder
[coreos/rocket](https://github.com/coreos/rocket)
A new container runtime from CoreOS
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