Defining strategic objectives: the organization must have a clear vision and establish if the media channels will complement the traditional ones, or will replace them. We must define specific objectives (don't forget to check if they are SMART!) and we must also specify the contribution of the online activities to the organization's turnover.
You need to itemize your budget with breakdowns for advertising and promotions. Include any design, development for needed materials to facilitate the marketing. List the media outlets that will be used to execute your marketing plan and break out the online, social, e_mail marketing, e_brochures/e_catalogs, TV, print, radio, PR, tradeshows, sponsorships, philanthropic partnerships, direct_mail, telemarketing, and other outlets. I would also identify which components that will be completed in house and whether you will have an outside agency to help with your media buying and planning.