The Nike running log is nice. When I first started using it, I found it slow and a little to flashy, but it had something, which I couldn’t put my finger on. Maybe it was being new to running and being more of a data guy, I was a little disappointed. It’s now been over 2 years since I started using Nike’s online logging, and I’ll tell you what I find it useful. It collects, stores and reports on my data very nicely. The easy canned reports for looking at running history, the ability to track sneakers and the wealth of content for interested runners are at the top of my list for this running log. On the downside, ease of entering your run and storing routes is disappointing compared to some of the other sites.
Here are the pros and cons:

Pros:
1. Customize what data you want to put in, you can put in as much or as little as you want, and it’s right at your finger tips
2. Sneaker miles tracking
3. Nice canned reports for easy progress tracking and look backs
4. All sorts of content for learning about everything from training to gear(of course). I stick to the training articles; they are very informative (http://nikerunning.nike.com).
5. Free training programs for everything to first 5k to advance marathon training.
6. *If you have Nike+ very nice community for setting goals, challenges, sharing ….

Cons:
1. Not so great data entry (can’t tab through text boxes, scrolling doesn’t work 100% as you would think)
2. Integration with only Nike+ (pedometer)
3. No reverse integration with Nike+ community (would be nice if manual entry people could participate in the Nike+ running community)
4. No easy way to create routes compared to others. I will say that when you do create a route, having the route data carry over is nice.

Recommendation:
If you like to collect a lot of data on your runs, use Nike+ and want to store more information about your runs, and want an easy way to look at your progress, this is a great running log. My recommendation is for seasoned runners or Nike+ users.