diff --git a/README.rst b/README.rst
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@@ -21,6 +21,7 @@ Biology
 * `Collaborative Research in Computational Neuroscience (CRCNS) <http://crcns.org/data-sets>`_
 * `Gene Expression Omnibus (GEO) <http://www.ncbi.nlm.nih.gov/geo/>`_
 * `Human Microbiome Project (HMP) <http://www.hmpdacc.org/reference_genomes/reference_genomes.php>`_
+* `American Gut (Microbiome Project) <https://github.com/biocore/American-Gut>`_
 * `ICOS PSP Benchmark <http://www.infobiotic.net/PSPbenchmarks/>`_
 * `MIT Cancer Genomics Data <http://www.broadinstitute.org/cgi-bin/cancer/datasets.cgi>`_
 * `NIH Microarray data (FTP) <http://bit.do/VVW6>`_