Plugin Portal or Update Center? What is better for me?
It depends on your preference. If you need to get your plugin out quick, use the Plugin Portal as publishing can take only several minutes. In addition to that you can also publish your plugin on the NetBeans Plugin Portal Update Center. Content of this Update Center is purely community driven so publishing of plugins can take from couple of days to few weeks. However, upon successful verification by at least two Community Plugin Verifiers users will be able to install your plugin directly from the NetBeans IDE via built-in Plugins Manager.