A wiki is an electronic communication tool would be recommended.
There are many types of tools that are helpful in communication via electronically. Some of them are Podcast, wiki, e mail, fax, phone, social media groups, chat rooms, etc. These are efficient in making communication in business context. There may be situations in which communication must be done at different times regarding the products and its updates.
A wiki helps in the electronic communication in which there are time differences across different regions exists. The example given in the question requires the streamlining of demos and this can be achieved using the wiki electronic communication tool.