I am quite impressed by the range of features that Mobysaurus has to offer. These include over 30,000 headwords and 2,500,000 synonyms, cross-referencing, wildcard Search, extra online references, the ability to flag favorite searches, and a fully traceable search history that Mobysaurus saves....Mobysaurus is definitely my reference tool of choice, and I highly recommend it.
I am somewhat unclear as to whether there are sufficient differences between the three main tabs; these seem to contain pretty much the same info with the middle one (Find Synonymous headwords) the most useful. A single, user configurable tab would have been better. As it is the three tabs seem spammy and redundant.