“This alternative way of slicing the data still shows Email to be, by far, the dominant sector in terms of mobile time, although this dominance shrinks by a few delta points to 38.5% from 41.6%. Search is another that nets out with a smaller share, although by less than a percentage point from 7.1% to 6.3%. The share held by Social Networking remains very similar but News & Current Events comes out much stronger using the site-level analysis at a 7.2% share of time compared to 4.4% of time using the category-level analysis. Share of time on Portals shows something more dramatic, with a change from 11.6% to 4.6% share of time, but this doesn’t mean that people are spending any less time on Portal sites. Nielsen classifies both channels and brands into categories and so a category-level analysis includes both brands (e.g. Google) as well as channels under than brand (e.g. Google News). Using the initial methodology means that all Google time would be assigned to Portals (because Google is a portal) but using the site-level method means the Google News element would be assigned to the News & Current Events sector. Thus, the Portal element is limited to more general and entry pages rather than including content-specific sectors such as news.”