I'm blind on my left eye, but have vision on my right eye, but not perfect. :P
For the deaf, I'd say include captions for what the sound makes and for audio "podcasts" like if you're listening to what the speaker are saying through the microphone, a transcripts (a transcript contains everything what the speaker are saying, like closed caption in TV) must be included for those who are hearing impaired (I'm hearing impaired) or deaf.
