diff --git a/README.md b/README.md
index c977ef9..3ac57ae 100644
--- a/README.md
+++ b/README.md
@@ -413,6 +413,7 @@ A curated list of awesome C/C++ frameworks, libraries, resources, and shiny thin
 ## Machine Learning
 
 * [Caffe](https://github.com/BVLC/caffe) - A fast framework for neural networks. [BSD]
+* [Caffe2](https://github.com/caffe2/caffe2) - A lightweight, modular, and scalable deep learning framework. [Apache2] [website](https://caffe2.ai/)
 * [CCV](https://github.com/liuliu/ccv) - C-based/Cached/Core Computer Vision Library, A Modern Computer Vision Library. [BSD]
 * [Fido](https://github.com/FidoProject/Fido) - A highly-modular C++ machine learning library for embedded electronics and robotics. [MIT] [website](http://fidoproject.github.io/)
 * [MeTA](https://github.com/meta-toolkit/meta) - A modern C++ data sciences toolkit. [MIT] [website](https://meta-toolkit.org/)
@@ -420,6 +421,7 @@ A curated list of awesome C/C++ frameworks, libraries, resources, and shiny thin
 * [mlpack](https://github.com/mlpack/mlpack) - A scalable c++ machine learning library. [LGPLv3] [website](http://www.mlpack.org/)
 * [OpenCV](https://github.com/Itseez/opencv) :zap: - Open Source Computer Vision Library. [BSD] [website](http://opencv.org/)
 * [Recommender](https://github.com/GHamrouni/Recommender) - C library for product recommendations/suggestions using collaborative filtering (CF). [BSD]
+* [RNNLIB](https://github.com/szcom/rnnlib) - RNNLIB is a recurrent neural network library for sequence learning problems. [GPLv3]
 * [SHOGUN](https://github.com/shogun-toolbox/shogun) - The Shogun Machine Learning Toolbox. [GPLv3]
 * [sofia-ml](https://code.google.com/p/sofia-ml/) - The suite of fast incremental algorithms for machine learning. [Apache2]
 
@@ -430,7 +432,7 @@ A curated list of awesome C/C++ frameworks, libraries, resources, and shiny thin
 * [blaze](https://bitbucket.org/blaze-lib/blaze) - high-performance C++ math library for dense and sparse arithmetic. [BSD]
 * [Boost.Multiprecision](http://www.boost.org/doc/libs/master/libs/multiprecision/doc/html/index.html) - provides higher-range/precision integer, rational and floating-point types in C++, header-only or with GMP/MPFR/LibTomMath backends. [Boost]
 * [ceres-solver](http://ceres-solver.org/) - C++ library for modeling and solving large complicated nonlinear least squares problems from google. [BSD]
-* [CGal](http://www.cgal.org/) - Collection of efficient and reliable geometric algorithms. [LGPL&GPL]
+* [CGAL](https://github.com/CGAL/cgal) - Collection of efficient and reliable geometric algorithms. [LGPL&GPL] [website](http://www.cgal.org/)
 * [cml](http://cmldev.net/) - free C++ math library for games and graphics. [Boost]
 * [Eigen](http://eigen.tuxfamily.org/) - A high-level C++ library of template headers for linear algebra, matrix and vector operations, numerical solvers and related algorithms. [MPL2]
 * [ExprTK](http://www.partow.net/programming/exprtk/) - The C++ Mathematical Expression Toolkit Library (ExprTk) is a simple to use, easy to integrate and extremely efficient run-time mathematical expression parser and evaluation engine. [MIT]
@@ -441,6 +443,7 @@ A curated list of awesome C/C++ frameworks, libraries, resources, and shiny thin
 * [muparser](http://beltoforion.de/article.php?a=muparser) - muParser is an extensible high performance math expression parser library written in C++. [MIT]
 * [NT2](https://github.com/Mathieu-/nt2) - A SIMD-optimized numerical template library that provides an interface with MATLAB-like syntax. [Boost]
 * [LibTomMath](https://github.com/libtom/libtommath) - A free open source portable number theoretic multiple-precision integer library written entirely in C. [PublicDomain & WTFPL] [website](http://www.libtom.net/)
+* [linmath.h](https://github.com/datenwolf/linmath.h) - A lean linear math library, aimed at graphics programming. [WTFPL]
 * [QuantLib](https://github.com/lballabio/quantlib) - A free/open-source library for quantitative finance. [Modified BSD] [website](http://quantlib.org/)
 * [Vc](https://github.com/VcDevel/Vc) - SIMD Vector Classes for C++. [BSD]
 * [Versor](http://versor.mat.ucsb.edu/) - A (fast) Generic C++ library for Geometric Algebras, including Euclidean, Projective, Conformal, Spacetime (etc).
@@ -487,6 +490,7 @@ A curated list of awesome C/C++ frameworks, libraries, resources, and shiny thin
 
 * [libharu](https://github.com/libharu/libharu) - A free, cross platform, open-sourced software library for generating PDF. [zlib]
 * [MuPDF](https://mupdf.com/) - A lightweight PDF, XPS, and E-book viewer. [AGPL/Commercial]
+* [Poppler](https://poppler.freedesktop.org/) - Open-source multi-backend PDF rendering library based on the xpdf-3.0 code base. [GPLv2/GPLv3]
 
 ## Physics
 *Dynamics simulation engines*