Inline Frames OK? Too Many Inline Frames?

Inline Frames OK for Google

[clarksc3]

I have 300 City-based Websites (Separate Domains) with one Main Hub that links to them.

Poor Man's Ad server:
All my Websites are Straight HTML, nothing too fancy. Because of the large number of cities and pages, I use IFrames that all link back to my main hub. This allows me to change one page on my main hub that displays on all 300 cities. Mainly used for ads. I do not have to update 300 sites. The IFrame is usually around 75 pixles by 100 pixles.

Does this create a problem for Google?

I have about 4 or 5 of these small IFrames on each of my city HomePages. Does this create additional outbound links that dilute by PR?

[Bobby]

Treat them like any frame pages and include the text (if you want it to get indexed) in what would be the noframes tag in normal frames pages.

In the case of Iframes you simply need to include the text after you call the page and before the end of the Iframes tag, something like this:

<IFRAME src="whatever.htm">Text you want indexed here</IFRAME>

I wouldn't worry about it diluting any PR, I believe it is treated almost as if it were simply grabbing an image file.

If you place a link inside the noframes text then you might be 'diluting' the PR somewhat but who really knows for sure.