500 articles, well written for connectdirector

Need about 500 SEO articles,
500-700 words (excluding summary),
keyword / SEO driven,
well written in Business English,
contain high quality information (so some web research will be necessary) and should include a brief summary / description of 150 characters.

Before start we expect some reference customers and 15 examples. If quality is not sufficient we will terminate the project.

Minimum set 15 articles / week, before each set and start of writing we expect an list of titles (60 characters) and content description, that should be accepted upfront by us.

Article subjects will be: networking, investments, business, jobs, online, restaurants & food, events, export & trade.