- 21 World Down Syndrome Day http://www.worlddownsyndromeday.org/
- American Speech - Language - Hearing Association http://www.asha.org/
- Associação Nacional de Intervenção Precoce http://anip.net/
- Associação Portuguesa de Crianças Sobredotadas http://www.apcs.co.pt/
- Associação Portuguesa de Pessoas com Dificuldades de Aprendizagem Específicas http://www.appdae.net/index.html
- Associação Portuguesa de Portadores de Trissomia 21 http://www.appt21.org.pt/
- Associação dos Amigos da Arte Inclusiva - Dançando com a Diferença http://www.aaaidd.com/
- Center on Teaching and Learning - Big Ideas in Beginning Reading http://reading.uoregon.edu/
- Council for Exceptional Children http://www.cec.sped.org/
- Down's Syndrome Association (UK) http://www.downs-syndrome.org.uk/
- Fonética & Fonologia http://www.fonologia.org/index.php
- Kids on the block http://www.kotb.com/
- LD online http://www.ldonline.org/
- National Center for Learning Disabilities http://www.ncld.org/
- National Dissemination Center for Children with Disabilities http://nichcy.org/
- National Reading Panel (USA) http://www.nationalreadingpanel.org/
- National Research Center on Learning Disabilities http://www.nrcld.org/index.html
- Plano Nacional de Leitura (PT) http://www.planonacionaldeleitura.gov.pt/index1.php
- Raising awareness of language learning impairments http://ralliindex.blogspot.co.uk/
- Reading Rockets http://www.readingrockets.org/
- The European Association on Early Childhood Intervention http://www.eurlyaid.eu/
- The International Dyslexia Association http://www.interdys.org/
- The Yale Center for Dyslexia & Creativity http://dyslexia.yale.edu/