Tiobe Index: C back at #1 April 7, 2010 PositionApr 2010 PositionApr 2009 Delta in Position Programming Language RatingsApr 2010 Delta Apr 2009 Status 1 2 C 18.058% +2.59% A 2 1 Java 18.051% -1.29% A 3 3 C++ 9.707% -1.03% A 4 4 PHP 9.662% -0.23% A 5 5 (Visual) Basic 6.392% -2.70% A 6 7 C# 4.435% +0.38% A 7 6 Python 4.205% -1.88% A 8 9 Perl 3.553% +0.09% A 9 11 Delphi 2.715% +0.44% A 10 8 JavaScript 2.469% -1.21% A 11 42 Objective-C 2.288% +2.15% A 12 10 Ruby 2.221% -0.35% A 13 14 SAS 0.717% -0.07% A 14 12 PL/SQL 0.710% -0.38% A 15 - Go 0.710% +0.71% A 16 15 Pascal 0.648% -0.07% B 17 17 ABAP 0.625% -0.03% B 18 20 MATLAB 0.616% +0.13% B 19 22 ActionScript 0.545% +0.09% B 20 19 Lua 0.521% +0.03% B via tiobe.com Interesting information (look at the link for more stats, including long term trends, etc.) I find it interesting that Obj-C has seen such a dramatic increase in one year. A testament to the increasing popularity of Mac OS X and iPhone development? Also of note is a slight decrease in Ruby popularity.