putty solutions

• SuperPutty
• Putty Connection Manager
  • The main site seems to be down. Alternative download spots? [1]
• "outside the box" solutions
  • use WinTabber to add tabs to Putty/Kitty/et al
• list at original author's site

non-putty solutions

• use Console2 along with a OpenSSH client of some sort:
  [1]
  • SSH clients:
    • pre-packaged versions of Cygwin's SSH client [1]
    • Cygwin [1]
• Poderosa
• MobaXterm