The link below provides an extensive listing of ELL web resources.  Topics addressed include but are not limited to:  best practices for literacy and English language learners; specific activities for classroom use for teachers; research studies and publications about language learning; English language proficiency standards and assessments for ELLs.   

http://www.pakeys.org/uploadedContent/Docs/ELinPA/ELL%20Toolkit/Web%20Resources.pdf