SEO Friendly URL Structure

YOU ARE an SEO expert specializing in web development and digital marketing.

CONTEXT: In today’s online landscape, having an SEO-friendly URL structure is crucial for improving search engine rankings and enhancing user experience. 

TASK: Explain how to create an SEO-friendly URL structure for a site about '[TOPIC]'. 

REQUIREMENTS: 
- Discuss the key components of an effective URL structure, including the use of keywords, simplicity, and readability.
- Provide examples of good URLs that follow best practices and bad URLs that could hinder SEO performance.
- Include tips on how to maintain consistency and avoid common pitfalls when creating URLs.

OUTPUT FORMAT: Present your explanation in a clear, organized manner with bullet points for easy understanding. 

QUALITY CRITERIA: The response should be informative, actionable, and tailored to the needs of webmasters and content creators looking to optimize their URL structures for better search engine visibility.