Have you ever used topsites?

[Darkwaltz4]

Since i am just picked back up a project i started working on a few months ago, i figured i may as well do something that i should have THEN, to help me now :-p

Esentially, i really dont use topsites, but i have joined a few, talked to a handful of people, and looked at some of the mainstream topsites out there (like aardvark).

and im looking for some feedback about experiences with things like this as i am doing it

basically, have you ever used topsites? what were they? do you still use them? what did you like about them? what didnt you like? what would/did you change about them to suit your particular needs? would you switch if what you switched to was better? would you only switch if you could adequately and painlessly convert your current base? how much activity did your topsites recieve? would you be willing to let me look at the db data youve built up over the large course of time it took to do so, in order for me to think about making converters....that sort of thing :-p discussion on topsites. i want to know so i can better cater my upcoming hack to the people who actually will use it as extensively as it is being designed.