DW clear-GIF data provides reporting metrics for search engine referrals to sites. Reports range from URI-specific to business-unit rollup --just add wildcards to any URL to get a rollup of matching URLs.
examples:
...or just use a Data Warehouse site ID in the advanced form
Robot Analysis
Reports on which major search engine crawlers are hitting URLs. This is strictly URL based, but rollups can be made by attatching an asterisk.
ex: http://www.cnet.com/*