The lastest startup to join a rapidly-growing market for web presentations is Zenter, which takes an interactive approach to presentations while providing common features of Microsoft (MSFT) PowerPoint. The three-month-old startup is currently in beta and is expected to launch next month where it will join WebEx, which was just acquired by Cisco (CSCO), and a slew of others including Empressr,Thinkfree, Thumbstacks, Slideshare and Zoho.
Read more on the Business 2.0 site.

