Here is a list of LogicPuzzles that I like:

• Pentagrid Puzzles
  
• BlokStak
  
• Sudoku 5x5
  
• KenKen
  
• Combiku
  
• EndView (ABC Place)
  
• Skyscraper (Tower)
  
• Tipover
  
• Gridworks (Chocolate Fix)
  
• Pete's Pike (Lunar Lockout)
  
• Rush Hour
  
• River Crossing