I like the site. 

I noticed that the LTC difficulty estimate is jumping around.  Are you by chance only basing it on the time for the last block rather than a rolling average?

This one shows -19.35%.  A few minutes earlier it was +38%...

btc  239719  8.71G  2016  239904  185  90.82%  12153412.00  15428597.34  26.95%  1d 0hr 17m 16s 
nmc  114171  1.13G  2016  114912  741  63.24%  2932635.36  2994885.92  2.12%  5d 0hr 55m 58s 
ltc  364901  1.69G  2016  366912  2011  0.25%  604.60  487.58  -19.35%  4d 7hr 54m 6s