For Hub Pages I do 3 things;
1) First I link my hubs together by subject matter. If someone likes my hub on gifts for a 5 year old they may want to see how to teach your 5 year old how to tie their shoes as well, so I link them together.
2) Second I do bookmarking at sites like Digg or Folkd. Can't go too crazy without giving links to other things as well or you aren't keeping it real.
3) Third I post to short article sites like Xomba, Snipsly and Shetoldme. Again you need to keep it real so add other stuff as well.