For a couple of days now we are using the Live Meeting Service services from Microsoft Online Services. And I need to say this will work great.
Microsoft Office Live Meeting Service
Connect with your colleagues and engage your customers through real-time meetings, training sessions, and events—using only a PC with an Internet connection and basic software. Hosted Web conferencing from the Microsoft Office Live Meeting service can help give you the power to collaborate from virtually anywhere—set up project meetings, brainstorm ideas, edit files, collaborate on whiteboards, and negotiate deals without the cost and hassle of travel! Free your IT staff to focus on other important projects, and rely on Live Meeting to consistently deliver a high level of security, quality, and availability backed by a decade of operating experience.
Interact with groups of up to 1,250 users, share presentations, collaborate on documents, and encourage participation with interactive tools.
Keep attendees engaged through integrated audio, video, and rich media.
Reduce training and deployment costs with a familiar look and feel and convenient Web-based hosting.
Easily add unique interactive tools that work with existing systems and productivity applications.
Improve remote collaboration and increase meeting effectiveness with a familiar, easy-to-use interface.
Stay confident with proven 99.99% uptime availability and always-on encryption.
Link and Try!