Outside of the ones I mentioned today (coming off a 3+ goal loss and fading a team home the next day after a road win) there are a few others. Tiger told me about the one where you fade the team coming off the road win. Don't use any of these as your only parameter for choosing a game but they are something to look for.
-Look for an underdog shooting at least 10% over their last five against a fave allowing at least a 10% shooting percentage over their last five.
-Historically, games where both teams played the previous day and traveled have resulted in unders. That hasn't been as strong this year.
-Look to fade a team coming home off a successful road trip, especially if it is cross country and especially if a team only has one day of rest in between. With only one day of rest, chances are they will want to spend that day with their family rather than concentrate on hockey.
-Play with a hot goalie

Sounds obvious, huh?
-Look for line matchups. Some teams have one super strong line, some have two good but not great lines, etc. For example, to play against the Devils you better be playing a team with at least one great defensive line (to neutralize the A Line) and a secondary line that can score.
Here are some more from Tiger:
-play a team in it's first game with a new coach (works well in all major sports)
-when a team plays a road game one night and then comes home to play against a rested team, play the rested team.......often get a good dog with this one
-play any home team getting +1.5 goals up to minus 125....an automatic play
-play under when the home team is favoured by 2.5 goals....only happens about one per month but hit 7 out of 9 last year
-for whatever reason, afternoon games have always tended to be higher scoring......although not this year so far
-when a team plays B/B on the road, play the 2nd game to go over