• Hellmuth, Obata and Kassabaum Architects for 200 Public Square , Cleveland Browns Stadium, and Jacobs' Field.
• Cesar Pelli and Associates Architects for the Key Tower, Marriott at Key Center, Cleveland Clinic Crile Building and others.
• RTKL Associates, Inc. Architects for the Fifth Third Center, Skylight Office Tower, the Ritz-Carlton Hotel, and the Wyndham Hotel at Playhouse Square.
• Skidmore, Owings, and Merrill , LLP Architects for the National City Center, the Penton Media Building , Eaton Center, and the Diamond Building.
• The Stubbins Associates Architects for One Cleveland Center.

• American Institute of Architects - Cleveland Chapter - The Cleveland chapter of the American Institute of Architects.
• Cleveland Digital Library - Cleveland State University’s online resource to the history of Cleveland and Northeast Ohio.
• Cleveland Memory Project - A comprehensive and exhaustive collection of historical images from the Special Collections of the Cleveland State University Library.
  
• Cleveland Public Art - Cleveland Public Art is an independent, non-profit organization, bringing excellence and artistic talent to civic projects, while inspiring the public to imagine and participate in the process.
• Cleveland Restoration Society - A nonprofit community organization dedicated to to preserving and enhancing the architectural heritage of the Cleveland region.
• Downtown Cleveland Building Projects - Updates of significant construction prior to 2004 in the Cleveland area, including links and images.
• Urban Design Center of Northeast Ohio - Kent State University - A community service organization committed to improving the quality of urban places through design, research, education and advocacy.
• UrbanOhio.com - A site featuring information and images of architecture, city planning in the state of Ohio. This site also features a forum for online discussion.

Blogs

• Cleveland Vs. The World - Online journal featuring planning-related updates of Cleveland
• Cuyahoga County Planning Commission - Frequent updates of events in Greater Cleveland
• GreenCityBlueLake - Features information about sustainable development

• CityProwl - featuring a downloadable MP3 audio tour of Lower Prospect Avenue.
• The Cleveland Museum of Art
• The Cleveland Orchestra
• Convention and Visitors’ Bureau of Greater Cleveland
• The Great Lakes Science Center
• Lolly the Trolley Tours
• The Rock and Roll Hall of Fame
• The West Side Market

• City of Cleveland - the official site of the City of Cleveland
• Ohio City
• The Historic Warehouse District

• Cleveland Live The online version of the Cleveland Plain Dealer.
• Cleveland Public Library - The web site of the Cleveland Public Library.
• OhioBiz - Ohio-based and focused search engine.

• clevelandskyline.com - Produced by A.I.M. Enterprises, Inc., this site offers many lithographs and prints with views of Cleveland which are available for purchase.
• Gray and Company Publishers - Publishers of area guides and other Cleveland related books.
• mapPoster.com - Producers of axonometric aerial maps of downtown Cleveland and other U.S. cities. Maps are available for purchase here.

• SkyscraperPage.com The ultimate online resource for skyscraper enthusiasts.
• Calgary Skyscrapers A site devoted to skyscrapers of Calgary, Alberta, Canada.
• Cincy Images An excellent photo site showcasing Cincinnati, Ohio.
• phillyskyline.com A site devoted to the skyscrapers of Philadelphia, Pennsylvania.