Last week I was reading Matt Cutts Blog and saw his report that:
The Google crawl/indexing team has continued working hard, and several people have noticed Google’s index getting fresher and fresher. Now some documents can show up in minutes instead of hours or days.
The day after that I published a product review on one of my blogs before lunch. After eating I Googled for the product name and was completely blown away to find that my new page was in the top 5 results with the words updated 36 min ago next to it.
Most people are used to waiting several days if not weeks for new pages on their website to appear in search engines and this can lead to complacency about checking spelling, grammar and broken links before publishing a new page.
With Google now indexing some sites literally within minutes the key message to take away is Quality Control. Get someone to read your page text and click through all the links before publishing