Learn To Read Music With The Assistance Of On-Line Resources
Link 1: How to Read Music - wikiHow
Link 2: Introduction to Reading Music
Link 3: How to read sheet music... a free course.
Link 4: Ricci Adams' Musictheory.net
Link 5: teorķa - Music Theory Web
Link 6: Walt Ribeiro >> The Internet's Music Teacher
I am not able to read music myself [by sight or otherwise] but these sites look they could well be of interest to those who are more musically enabled than me. Most of the sites carry the techniques of reading music and/or exercises focused upon developing and improving reading music.
Screenshot of one of the sites listed above: