Table 1 Links to resources mentioned in the text (contact the authors if a resource is no longer available at the given address)

APG tree

http://www.mobot.org/MOBOT/research/APweb/

Authoritative phylogeny from Angiosperm Phylogeny Group

Dryad

http://www.datadryad.org

Public archive of data associated with peer-reviewed bioscience articles

ICBN

http://ibot.sav.sk/icbn/main.htm

International Code of Botanical Nomenclature

ICSP

http://www.the-icsp.org/

International Committee on Systematics of Prokaryotes

ICZN

http://iczn.org/

International Commission on Zoological Nomenclature

JDAP

http://datadryad.org/jdap

Joint Data Archiving Policy that directs authors to submit supporting data to an appropriate public archive

Mesquite

http://www.mesquiteproject.org, mesquitelist@mesquiteproject.org

Interactive software for comparative analysis; email list is a common venue for addressing interoperability issues

MIAPA

http://www.evoio.org/wiki/MIAPA, miapa-discuss@googlegroups.com

Open project to develop a Minimum Information About a Phylogenetic Analysis standard

MorphoBank

http://www.morphobank.org/

Web tool for sharing and publishing comparative data linked to images and specimen vouchers

NAR database issue

http://www.oxfordjournals.org/nar/database/c

List of secondary resources with alignments and trees (under protein sequences: domain databases)

NESCent

http://www.nescent.org

National Evolutionary Synthesis Center that supports many interoperability projects

NeXML

http://www.nexml.org

Open project to develop an XML format for comparative data and trees

NIH policy

http://grants.nih.gov/grants/policy/data_sharing/

Data sharing policy applicable to NIH-funded research

NSF policy

http://www.nsf.gov/bfa/dias/policy/dmp.jsp

Data sharing policy applicable to NSF-funded research

NWO policy

http://www.nwo.nl/files.nsf/pages/SPES_5VEDDR/$file/Regeling%20subsidieverlening%20NWO.pdf

Data sharing policy applicable to NWO-funded research, policy specified on p19, items 30 and onwards

Phylomatic

http://www.phylodiversity.net/phylomatic/

Software that supports grafting and pruning to create plant phylogenies from APG mega-tree

TDWG

http://www.tdwg.org

Biodiversity information standards organization with an active “Phylogenetic standards” interest group

TimeTree

http://www.timetree.net

Secondary resource synthesizing data on divergence times

iPlant TNRS

http://tnrs.iplantcollaborative.org/

Taxonomic Name Resolution Service for plant names

ToLWeb

http://www.tolweb.org

Secondary resource to assemble a curated tree of life

TreeBASE

http://www.treebase.org

Public archive for published trees and character data.

uBio

http://www.ubio.org

Taxonomic name resolution service for life