everyone seems to think natural is slow, gradual, at least that's what I have always thought... But then I think about it... did a story that gets published in a major paper, or a huge press relesae or all of a sudden hits a craze really get slow gradual link acceleration? or do they spike up fast and then people don't all return, but then some do for awhile, and then they tell their friends, and then soon there's another big spike? twitter... it was slow and gradual WITH spikes as more and more people talked about it, and the spikes were greater... THen again, perhaps the search algo also wants to know how often a term is searched for? If for example i search for site.com and theres 3 backlinks, and then 1 month later only I search for site.com and thers' 100 and google sees "site.com" searched stay the same or go down, maybe it doesn't rank as well because it's likely those backlinks were without branding and people aren't searching for it specifically? I don't know I'm just ranting I think.