Hmm, the topic is a nice one, but I think it proves the adage, “a force-directed graph visualization is never the right way to articulate anything.” It’s very hard to discern much of interest.
In this visualization, I was immediately able to pick out clusters around "i", "Apple", "touch" and so on .. and the interactivity helps me to quickly filter and explore. So, I think that for an exploratory tasks, a force-directed graph helps.