Purdue OWLPurdue OWL is the online writing lab from Purdue University. It has tons of information regarding writing and documentation.
Grammar BytesGrammar Bytes is a great website to practice different grammar rules.
WriteCast Podcast from Walden UniversityThe WriteCast Podcast is a podcast from the Walden University Writing Center offering tips and information about different writing topics.
Speech - Oral Communications Resources
Informative Speeches
Here's a helpful video on informative speeches.
What Makes a Strong Informative Speech / Oral Communications