If you can see it on the web page, someone can scrape it. If it can be scraped, it can be used to watch trends, gather competitive intelligence or product information, monitor website changes, or infer strategic insights. While it may be a constructive tool, the legal landscape around web scraping remains uncertain.
Web Scraping: Legal Issues and Best Practices for Publishers details several use cases in current practice, reviews legal considerations and theories of liability presented by website owners, and offers best practices for the use of web scraping as part of a business intelligence practice.
Companies that conduct web scraping activities must carefully consider the consequences of their actions. For essential actions and best practices for limiting risk or liability, this report is a must-read.