If you are thinking of possibly running a 5K (or just using the Couch to 5K program), then these links can help:

1. The fitness line Oiselle has a guide for you: First (or Fastest) 5k.
2. Darebee has an 8 Week program to go from couch to 5K that’s helpful.
3. This is a good reminder about how apps like couch to 5K and more can help: How Running Changed Me Mike Murphy
4. Some things I wrote earlier: In praise of the 5K and other (non-marathon) races.