As the snow fell, and then sat there, people filed complaints with the Boston 311 system about unshoveled sidewalks. Below is a map showing where the 123 complaints were filed, current as of late last night:
View Unshoveled sidewalks in a full screen map
If you're a fan of geocoded datasets, you can play with the 311 data. Unfortunately, the dataset does not include the comments filed with each complaint; for that, you'll still have to rummage around the 311 Web site.