For even more data feed optimization advice, please check out our company blogs. Try searching for specific subjects you're interested in, or just start from the very first blog post. Even the older posts are still very relevant today!
http://www.loveyourfeed.com/ - A blog about all things related to improving your shopping engine campaign. Get advice on data feeds, tracking, and managing your shopping engine accounts.
http://www.singlefeed.com/public/blog/ - Keep up to date on SingleFeed news, new releases, bugs, improvements, and more.
http://comparisonengines.com/ - Our founder, Brian Smith, keeps you up to date on the shopping engine industry.
http://googlecommerceguide.com/ - A blog on all things related to Google Product Search.