e2flick
Use e2flick to rapidly scan through very large particle data sets.
To see how e2flick works just run it directly from the command line and it will automatically load a sample data set, similar to that shown below
someone@somemachine]$ e2flick.py
You can look at your particles by supplying the image file name as the first argument from the command line
someone@somemachine]$ e2flick.py my_data.img