In addition, E.P.A. officials say, cleanup costs have climbed significantly as the agency has tackled more complex sites.
More complex sites such as Fark, Slashdot and Reddit have large communities dedicated to sharing and dissecting news stories with each other.
The E.P.A. says the slower pace reflects the inclusion of larger, more complex sites, rather than a lack of funds or resolve.
The administration says it is dealing with much bigger and more complex sites, if fewer of them, and that deciding how to pay for the program is up to Congress.
For more complex sites using a steel tower, costs will be a multiple of this.
Capturing everything means capturing a ton of data — especially on bigger, more complex sites with larger user bases — and that much data means scaling challenges.
Vignette vign rose sharply after the maker of web site publishing software said third-quarter sales rose more than fivefold amid demand for more complex sites.
On more complex sites, like the New York Times homepage, its choices were a bit more questionable (it first took me to Ask Real Estate and then, maybe to give me a chuckle, to the IE8 Support page).
Tests at a relatively flat suburban site gave reasonable performance; performance deteriorated at a more complex urban site with possible street canyon effects, due to tall buildings, e.g., only 56% of predictions fell within the factor-of-two envelope of the observations [ 23].
