Mrz (thank you for those links)
I had guessed from your posts around MN that you were a SENCO, you are interested in this field and care enough to research the subject. Most teachers do not.
At DDs school, I think the HT was Senco, it was just a tick in a box. I cannot believe they would have had time to study sites like those.
Those links are very teacher specific, I'm a graduate scientist and have read a lot around this subject and will enjoy delving into them.
However, what the OP, other worried parents and most teachers need is site that begins in laypersons terms and gradually links through to processing speed, working memory and the rest.
A site that breaks down the myths and and has no links to selling testing, tuition, expensive glasses or any other product.
A site that talks about how parents can help and the resources available, apples and pares, toe by toe (which is weird but seemed to help DD1), stairway to spelling and the rest.
I said something like the NCT, because I think parents need to feel the information is independent. If a government site states, Ed Phy assessments are unnecessary and the correct support can be put in place by the school without a 'diagnosis' parents are going to feel it is just an attempt to save money.