Weighted moving averages eliminate the distortion common to simple moving averages, but are more difficult to construct than exponential moving averages.
Wilder moving averages are used mainly in indicators developed by J. Welles Wilder. Essentially the same as an exponential moving average, they use different weightings, for which users need to make allowance.
Williams Accumulation Distribution is traded on divergences. When price makes a new high and the indicator fails to exceed its previous high, distribution is taking place.