add doc/success.rst

doc/success.rst

+Success stories
+===============
+
+If you have a success story for Gevent, contact denis.bilenko@gmail.com or post to the `google group`_.
+
+.. _google group: http://groups.google.com/group/gevent/
+
+
+Omegle_
+-------
+
+I've been using gevent to power Omegle, my high-volume chat site,
+since 2010. Omegle is used by nearly half a million people every day,
+and it has as many as 20,000 users chatting at any given time. It
+needs to needs to perform well and be extremely reliable, and gevent
+makes that easy to do: gevent gives you power to do more creative
+things, and it's fast enough that you can more easily write apps that
+stand up to a lot of load.
+
+gevent is well-engineered, and its development has been maintaining an
+active, dedicated pace for as long as I've been following it. Any time
+I've had an issue with gevent that I couldn't solve on my own, the
+friendly community has been extremely helpful and knowledgeable. I
+really think gevent is the best library of its type for Python right
+now, and I would recommend it to anyone who needs a good networking
+library.
+
+-- Leif K-Brooks, Founder, Omegle.com_
+
+.. _Omegle: http://omegle.com
+.. _Omegle.com: http://omegle.com
+
+
+Pediapress_
+-----------
+
+Pediapress_ powers Wikipedia_'s PDF rendering cluster. I've started using
+gevent in 2009 after our NFS based job queue showed serious performance
+problems on Wikipedia's PDF rendering cluster. I've replaced that with
+a gevent based job queue server in a short time. gevent is managing the
+generation of around 100000 PDF files daily and is serving them to wikipedia users.
+
+Recently I've refactored the component that fetches articles and
+images from wikipedia to use gevent instead of twisted. The code is
+much cleaner and much more manageable then before.
+
+-- Ralf Schmitt, Developer, Pediapress_
+
+.. _Pediapress: http://pediapress.com/
+.. _Wikipedia: http://www.wikipedia.org/
+
+
+`ESN Social Software`_
+----------------------
+
+Wanting to avoid the ravages of asynchronous programming we choose to base
+our real-time web development framework Planet on gevent and Python. We’ve
+found gevent to be stable, efficient, highly functional and still simplistic
+enough for our needs and our customer’s requirements.
+
+-- Jonas Tärnström, Product Manager, `ESN Social Software`_
+
+.. _ESN Social Software: http://esn.me
+
+
+`Blue Shell Games`_
+-------------------
+
+At Blue Shell Games we use gevent to power the application servers that
+connect more than a million daily players of our social casino games.
+Recognizing that our game code is largely I/O bound — whether waiting on
+a database, social networking data providers, or the clients themselves — we chose
+gevent as our asynchronous networking framework. Not only does gevent offer
+the best performance of any of the Python async networking packages, its
+threading model makes multithreaded application servers far easier to write
+than traditional kernel threading-based approaches. As our applications add
+more real-time multiplayer features, gevent is ready to handle these kinds
+of problems with ease.
+
+-- David Young, CTO, Co-Founder, `Blue Shell Games`_
+
+.. _Blue Shell Games: http://www.blueshellgames.com/
+
+
+TellApart_
+----------
+
+At TellApart, we have been using gevent since 2010 as the underpinnings of
+our frontend servers. It enables us to serve millions of requests every hour
+through only a handful of servers, while achieving the strict latency
+constraints of Real-Time Bidding ad exchanges. Since then, we've expanded
+our use of gevent throughout our stack. Combined with tools such as closures
+and generators, gevent makes complicated queuing, distribution, and
+streaming workloads dramatically easier to implement. Our open-source event
+aggregation service, Taba, couldn't have been built without it.
+
+See also: `Gevent at TellApart`_
+
+-- Kevin Ballard, Software Engineer, TellApart_
+
+.. _TellApart: http://tellapart.com
+.. _Gevent at TellApart: http://tellapart.com/gevent-at-tellapart
+
+
+Disqus
+------
+
+See: `Making Disqus Realtime`_
+
+.. _`Making Disqus Realtime`: https://ep2012.europython.eu/conference/talks/making-disqus-realtime
+
+
+Pinterest
+---------
+
+Pinterest is one of the biggest players of gevents. We started using gevent in
+2011 to query our mysql shards concurrently. It served us well so far. We run
+all our WSGI containers using gevent. We are in the process of making all our
+service calls gevented. We use a gevented based thrift server which proved to
+be way more efficient than the normal python version. I think there is a cost
+upfront to make your code greenlet safe but we saw pretty huge win later.
+If you are looking to scale out on python gevent is your best friend.
+
+-- Yash Nelapati, Engineer, Pinterest_
+
+.. _Pinterest: http://pinterest.com/
+
+TBA: Spotify, Twilio