Unshorten Google Links
CJam, 7 bytes

lg'"/5=


Test run

$ alias cjam
alias cjam='java -jar ~/.local/share/cjam-0.6.5.jar'
$ cjam unshorten.cjam &lt;&lt;&lt; goo.gl/HaE8Au; echo
https://codegolf.stackexchange.com/
$ cjam unshorten.cjam &lt;&lt;&lt; goo.gl/IfZMwe; echo
https://stackoverflow.com/
$ cjam unshorten.cjam &lt;&lt;&lt; goo.gl/JUdmxL; echo
https://chat.stackexchange.com/rooms/240/the-nineteenth-byte


How it works

lg reads a line from STDIN and makes a GET request to that URL. The shortened URL issues a 301 redirect, which CJam doesn't follow. For the first test case, this pushes

&lt;HTML&gt;
&lt;HEAD&gt;
&lt;TITLE&gt;Moved Permanently&lt;/TITLE&gt;
&lt;/HEAD&gt;
&lt;BODY BGCOLOR="#FFFFFF" TEXT="#000000"&gt;
&lt;H1&gt;Moved Permanently&lt;/H1&gt;
The document has moved &lt;A HREF="https://codegolf.stackexchange.com/"&gt;here&lt;/A&gt;.
&lt;/BODY&gt;
&lt;/HTML&gt;


on the stack. Finally, '"/ splits at double quotes, and 5= gets the sixth chunk. Output is implicit.