Cheap/free media publishing (blogging, cheaper actual print publishing costs) and advertising (Google-style click-through advertising, forever segmenting touch-point marketing) options are also available.
Then powerful online Customer Relationship Management services such as Salesforce.com will have ever more accessible prices because of competition. So anyone will be able to market these brand new branded products.
At the same time, software is also being developed to democratize computing over the internet. Pretty soon, left brain support for finance and accounting will look more like a simple Google search. The open source revolution will also do its part to fulfill other business needs.