It's been discussed here on webmasterworld as far back as 2006...

http://www.webmasterworld.com/google/3070792.htm [webmasterworld.com]

...but I'd like to see a current best practice list with tips from people who've done this recently, along with the result.

I've read the posts, including the one linked above, and although the message from Google seems to be related to getting the new content indexed the issues seem to pop-up for webmasters when that new content impacts existing content. Let me explain...

Internal links are the easiest to get and if you suddenly create 50,000 new pages on a 500 page site, all with the same header and sidebar with respective navigation links, you severely unbalance the internal link structure you are currently ranked with. Checks and balances are in place.

This got me thinking that if I want/need to add bulk content to a site, perhaps an entire new section or new product line etc, I should do so in a way that minimizes the impact to the rest of the site. But how can that be done?

- Making the new content available from a single deep link within the site, at first.
- Easing the new content into your similar pages links slowly.
- Introducing the new content slowly over time.

That first suggestion intrigues me, has anyone added a LOT of content that was only linked from perhaps a single lowly ranking page found deep within your archives? If so... what happened? I suspect the new content didn't rank well but did it cause a traffic reduction or penalty? Getting it all on your domain is a big scary first step.

[edited by: Robert_Charlton at 6:44 am (utc) on Jul 26, 2011]
[edit reason] fixed link [/edit]