The first set of posts featured Nextiva and 8x8, along with my overall impressions of the event. Links to these can be found in my sumary post about them from last week.
Since then, the final two posts are now running on the GetVoIP blog - one featuring Vonage and one with Microsoft. The links to each are below, and while you're there, I encourage you to check out the other content on the GetVoIP blog, which covers more than just VoIP and UC.
Channel Partners Spotlight on Vonage - What Makes Them a Good Partner
Microsoft at Channel Partners - "We're Channel-Friendly"