The greatest (in my view), and one of the oldest of the Delphi IDE expert suites is GExperts. It was created by Gerals Nunn (in 1997, if I am not mistaken), who also developed it for almost two years. Gerald has moved to other projects, but he kindly donated the GExperts source code to the online community.
- GExperts 1.0, The Delphi Magazine 72, August 2001
I still stand by those words. GExperts is a great suite of experts and I still use it every day. I also wrote few experts that are included in the GExperts pack and few that are included only in my private build.