Business technical writing

We require 4 quality, keyword targeted articles of approximately 300 - 400 words related to business technology topics :- Business systems / Core Technologies / Small Medium Enterprises / Large Scale Enterprises. Each article will be accompanied with an overview diagram, articles should be engaging, informative with accurate spelling and punctuation.
Clarification will be given to the successful bidder to confirm technical ideas and themes.
Longer term we will require 1 or 2 articles a week to help compliment our technical knowledge base website section.