11.   Some site visitors wonder if the stones could mark solstices and other solar events like eclipses.

12.   Sometimes, he has ranked a site as cranky, only to be corrected by site visitors.

13.   The Cambridge, Mass. company designs software that helps Web businesses analyze information about site visitors to help convert them into frequent buyers.

14.   The captions for each photo are listed from best to worst, based on voting by site visitors.

15.   The new system enables site visitors to narrow the range of books in a particular subject area by selecting certain attributes.

16.   Under the E-Cash system, site visitors download funds to pay for occasional Web charges from their checking account into an E-Cash Internet account.

17.   Web site visitors should have a sense of, or even access to, other site visitors as well as people in related physical sites.

18.   Without paying a fee, site visitors can get a simple answer about whether there are any problems with the vehicle, although no specifics are provided.

19.   The alternative is to demand that site visitors register, though this can deter legitimate visitors.

20.   There are staff on site toassist visitors.