Seems to me that the entry type is stored in the visitor cookie in Google Analytics. But more than that: It seems as if, as soon as the entry type is search, the previous entry type is overruled, and you remain a visitor coming via search, until you delete your cookies.
This has some implications, of course, for the statistics you see in Google Analytics. It would be logical to assume that the different traffic sources you see for a selected period, are the traffic sources used for that same selected period, but that is not necessarily the case: Many of the visits registered with Search as traffic source, can be from visitors entering the site directly (or any other way), but who sometime previously have entered the site via search.
Other tools relate entry type to Visit, instead of the Visitor, which is much more intuitive. The attached pictures shows the consequence of all this:
Picture 1: Google Analytics says I entered the site using the search term “Digital marknadsföring”, even though I actually entered the site by typing in the address directly.
Picture 2: comScore Digital Analytix is showing the same visit as a direct entry.
