The main sources of information used in the ID-RECCO database are listed in the table below. Additional sources of information are mentioned on each project's page.

Name of the source and number of projects identified Link to Internet page
Forest Carbon Portal, by Forest Trends: 244 forest carbon projects, of which 145 are in developing countriesForest Carbon Portal, by Forest Trends: 244 forest carbon projects, of which 145 are in developing countries http://www.forestcarbonportal.com/project/
REDD+ database, by the Institute for Global Environmental Strategy (IGES): 34 REDD+ projects http://redd-database.iges.or.jp/redd/
The REDD country database (Collaborative resource for REDD Readiness), by The Global Canopy Programme: REDD+ readiness activities, notably pilot projects, in 22 countries http://www.theredddesk.org/countries
Global database on REDD+ and other forest carbon projects, by the Center for International Forestry Research (CIFOR): 338 projects (including some readiness activities) http://www.forestclimatechange.org/redd-map/
Eco2data (limited access): around 100 projects, mainly AR http://eco2data.com/(last available as of June 2015)
Code REDD: REDD projects http://www.coderedd.org/
Carbon Catalogue: 131 forest carbon projects, 67 of which are in developing countries http://www.carboncatalog.org/
Voluntary REDD+ Database, by the REDD+ Partnership: Readiness arrangements only, with a focus on financial flows http://www.reddplusdatabase.org/#introduction
REDD X- Tracking Forest Finance, by Forest Trends: limited to 12 REDD+ countries with a focus on financial flows http://reddx.forest-trends.org/
Agriculture, Forestry, Land use projects, Verified Carbon Standard (VCS) database: 78 forestry projects, of which a few in developed countries http://www.vcsprojectdatabase.org/
The Climate, Community and Biodiversity Alliance (CCBA) database: 102 projects http://www.climate-standards.org/category/projects/
Plan Vivo database: 8 projects registered and 11 in the process of registration http://www.planvivo.org/projects/registeredprojects/
CarbonFix database: 16 ARR projects, of which 5 are in developed countries http://www.carbonfix.info/Project.html?PHPSESSID=prp0rgjdk1scg4su1946d05jt4
UNFCCC CDM Registry: all registered and pipeline CDM projects, and a small record of carbon transactions http://cdm.unfccc.int/Registry/index.html
SCS global services (and other verifiers) http://www.scsglobalservices.com/verified-carbon-offset-projects
"Community Participation and Benefits in REDD+: A Review of Initial Outcomes and Lessons", by Lawlor et al. 2013: 41 REDD+ projects Lawlor, K.; Madeira, E. M.; Blockhus, J. & Ganz, D. J. (2013), 'Community Participation and Benefits in REDD+: A Review of Initial Outcomes and Lessons', Forests 4(2), 296--318
Bringing forest carbon to market, by Chenost et al. 2010 Chenost, C.; Gardette, Y.; Demenois, J.; Grondard, N.; Perrier, M. & Wemaere, M. (2010), Bringing forest carbon projects to the market, UNEP
« REDD+ à l'échelle projet - Guide d'évaluation et de développement », by ONF International: 5 case studies Calmel, M.; Martinet, A. & Grondard, N. (2011), 'REDD+ à l'échelle projet. Guide d'évaluation et de développement.', Technical report, ONFI
REDD monitor: news http://www.redd-monitor.org/
Forest Carbon Asia : news http://www.forestcarbonasia.org/
Forest Carbon Asia : news http://www.forestcarbonasia.org/
APX VCS Registry: data on carbon transactions, country by country https://vcsregistry2.apx.com/myModule/rpt/myrpt.asp?r=206
Markit Environmental Registry: data on carbon transaction and –when available- link to project's PDD http://mer.markit.com/br-reg/public/index.jsp?entity=project&sort=project_name&dir=ASC&start=0&acronym=&limit=15&name=&standardId=