doc: update front page and go_learning.html

This is a stop-gap change to give more current information visibility
before a more thorough reorganization.

R=r, rsc, gri
CC=golang-dev
https://golang.org/cl/1902042
diff --git a/doc/go_learning.html b/doc/go_learning.html
index 630daf0..ecc1111 100644
--- a/doc/go_learning.html
+++ b/doc/go_learning.html
@@ -111,7 +111,15 @@
 A summarization of the changes between tagged releases of Go.
 </p>
 
-<h2 id="videos">Videos</h2>
+<h2 id="videos_talks">Videos and Talks</h2>
+
+<h3 id="go_programming"><a href="http://www.youtube.com/watch?v=jgVhBThJdXc">Go Programming</a></h3>
+<p>
+A presentation delivered by Rob Pike and Russ Cox at Google I/O 2010.  It
+illustrates how programming in Go differs from other languages through a set of
+examples demonstrating features particular to Go.  These include concurrency,
+embedded types, methods on any type, and program construction using interfaces. 
+</p>
 
 <h3 id="techtalk"><a href="http://www.youtube.com/watch?v=rKnDgT73v8s">The Go Tech Talk</a></h3>
 <p>
@@ -120,15 +128,33 @@
 but it's still a good introduction.
 </p>
 
-
 <h3 id="gocoding_channel"><a href="http://www.youtube.com/gocoding">gocoding YouTube Channel</a></h3>
 <p>
 A YouTube channel that includes screencasts and other Go-related videos:
 </p>
 <ul>
 <li><a href="http://www.youtube.com/gocoding#p/u/0/jDWBJOXs_iI">Screencast: Writing Go Packages</a> - writing, building, and distributing Go packages.</li>
+<li><a href="http://www.youtube.com/watch?v=3brH0zOqm0w">Screencast: Testing Go Packages</a> - writing unit tests and benchmarking Go packages.</li>
 </ul>
 
+<h3 id="oscon_go"><a href="http://www.oscon.com/oscon2010/public/schedule/detail/14760">Another Go at Language Design</a></h3>
+<p>
+A tour, with some background, of the major features of Go, intended for
+an audience new to the language.  The talk was presented at OSCON 2010.
+See the <a href="http://assets.en.oreilly.com/1/event/45/Another%20Go%20at%20Language%20Design%20Presentation.pdf">presentation slides</a>.
+</p>
+
+<h3 id="oscon_go"><a href="http://www.oscon.com/oscon2010/public/schedule/detail/15464">Go Emerging Languages Conference Talk</a></h3>
+<p>
+Rob Pike's Emerging Languages Conference presentation delivered in July 2010. See the <a href="http://assets.en.oreilly.com/1/event/45/Go%20Presentation.pdf">presentation slides</a>. Abstract:
+</p>
+<p><i>
+Go’s approach to concurrency differs from that of many languages, even those
+(such as Erlang) that make concurrency central, yet it has deep roots. The path
+from Hoare’s 1978 paper to Go provides insight into how and why Go works as it
+does.
+</i></p>
+
 <h3 id="promo_video"><a href="http://www.youtube.com/watch?v=wwoWei-GAPo">The Go Promo Video</a></h3>
 <p>
 A short promotional video featuring Russ Cox demonstrating Go's fast compiler.