Here are links to find external datasets linked to some of my co-authorship articles:
Arumugam et al (2011)
: All dataset associated with the enterotypes article.
Sobhani et al (2011)
: 16S rRNA gene pyrosequences from 12 subjects X2 Multiplex IDentifier.
Qin et al (2010)
: the MetaHit 3.3M genes catalog
Tap et al (2009)
: 16S rRNA gene Sanger sequences from 17 subjects and OTUs clustering