I've been converting my friends to the love that is Josh & Donna, so I put together this little write up...hopefully it will convince others to jump on the shipper bandwagon...

Season 1:
Donna wasn't a regular but Aaron Sorkin (creator of 'The West Wing') wrote her into every episode after Brad Whitford got on his knees and begged to keep her. :-)  There are a few moments that are worth noting...

• Episode 1 - The Pilot  
  The very first Josh and Donna scene.  Josh did something stupid and word is that he's going to get fired for alienating the religious right, but in comes Donna to talk to him.  We not only get a little J/D history lesson and learn her real name, but we get to hear her tell Toby (The Communications Director) to "shut up" and how great is that?? TWW0101_01_Coffee
• Episode 5 - Crackpots & These Women
  TWW105_01_SeekToControl - early morning Josh and Donna funny
  ...but then Josh gets a secret card with directions on where to go in the event of a nuclear attack...and realizes that it's just for him and not his assistant - so he goes to talk to Sam about his card and his assistant, Cathy ...
  TWW105_02_YourCard
  In an effort to sort out his emotions, Josh makes a visit to his shrink, Stanley, and we first learn about the death of his sister.  TWW105_04_Joanie
  At the end of the day, there's no going back for Josh and his decision about the card - TWW105_03_TheseWoman
• Episode 10 - In Excelsis Deo
  It's Christmas in the West Wing and Donna knows what she wants - skis, gloves, boots, snow suit... no, she doesn't ski but she tells Josh she wants to learn.  He goes shopping with the President to a rare book store and comes up with something better - at least for the fans.
  TWW110_01_TheBook
  

Season 2:
Opens at the moment we ended Season 1 - with shots being fired at the President as he leaves an event.  He is, of course, shoved into the limo and whisked away - but the staff is left behind to find each other.

• Episode 1 - In The Shadow of Two Gunman, pt 1
  TWW201_01_Josh - is Toby looking for and then finding an injured Josh
  TWW201_02_Donna - is Toby telling Donna about Josh
• Episode 2 - In The Shadow of Two Gunman, pt 2
  While overlaying the drama of the President and Josh - we see through flashbacks how the current staff came to work for Bartlet...