Blogging is all about content and how you present it to the viewer. The content needs to be accurate (both the language and the information), to the point (Give people what they want) and useful for the reader ("I wanted to know about iPhone 6, not the history of Apple").  Here are some guidelines for writing a professional post:

Bienvenue sur votre nouveau blog! Utilisez le blog pour raconter une histoire, partager de l'information et des connaissances, aider vos clients et générer du trafic sur votre site. Un blog est basé sur des messages....