Create text about Webdesign and SEO (only experts)

Hello, I need a unique text for offering Webmarketing and SEO Services along with Webdesign. The texts must be written by experienced writers with deeper knowledge in the respective fields. Each text should have a length of 300-400 words and contain general and specific information about the topics and should be optimized for Google. Online Marketing ~100 Words: What is Online Marketing - brief description and definition about Online Marketing and sub-topics like SEO, Social Media Marketing, E-Mail Marketing, Affiliate etc. and connection to Marketing Strategy ~100 Words: What are the advantages for Online Marketing? Low cost, detailed analyses, regional marketing, direct / individual marketing ~100 words: What can be achieved by good Online Marketing - Benefits for the customer (research some statistical, verified information). More Traffic, More Leads, More Sales. SEO: ~100 Words: What is SEO - brief description and definition about SEO and SEM and its dimension in an online marketing mix ~100 Words: Of what does SEO consist - OnPage and OffPage Optimization, Link Building, Keywords and other techniques ~100 words: What can be achieved by good SEO? - Benefits for the customer (research some statistical, verified information) ~50 words. Five reasons for doing SEO Webdesign: ~100 Words: What is Screendesign all about? What makes up a good Design in General? ~100 Words: What is special about website design? Interaction, Usability, SEO, personality, corporate identity, individuality etc. ~100 Words: Five reasons for investing in good design (research verified information about retention rates etc. that underline the reasons) Send me the first 50-100 words as a trial. I will assign the job on the basis of this trial. Quality and originality counts. Thank you Bjoern