I have been writing for more than 12 years now (document & technical authoring) and whilst I write for those I am doing SEO for, I am going to produce a site specifically to promote these services.
However, I am unsure how am I best to bill for these services? Do you accept a 50/50 payment? Payment upfront? Upon Completion?
I have no problem doing 'on completion' but I worry about those that might take the content and then not pay me. It is OK if I am in the UK and could chase for payment more easily, but overseas might be more awkward.
Also, is there somewhere I can get some ideas on the best prices to charge for this service? Whilst I am far from a novice, I am also not well known in this arena as yet.