WPMU is a mainstay of the wordpress community. As their name suggests, they began as specialists in blogging about and writing plugins for wp multiuser setups (now known as Multisite). These days they cover pretty much all aspects of WordPress. If you’ve ever Googl-ed anything about WordPress, chances are you’ve landed on their blog at some point. Through their offshoot Premium WPMU Dev, they also have a killer suite of plugins and themes that they are always adding to.Their plugins are generally well thought out, well-coded and they have support. Most of their plugins are just $19, or you can get an “all-you-can-eat” membership which is great for developers and people that build a lot of WordPress sites.
I recently took their Appointments+ plugin (aff. link) for a test drive. Online booking and scheduling is an area in which WordPress is still a little lacking. There are numerous solutions out there, but not really a killer one yet. When I first tried Appointments+ I wasn’t sure how it would stack up, and while there’s probably room for it to grow, as I tried a couple of other popular solutions I realized that it’s actually pretty decent. Now I haven’t used it consistently for a long time, so these are just my initial impressions. When I have it running on some live sites, I’ll report back how it holds up over time.