When is Google crawling Yahoo?

When is the best time to submit a site to Yahoo!

[zgb999]

Until when does a new site have to be added to Yahoo in order to influence the Google pagerank in the coming update?

If a site is submitted e.g. on the 25th of a month I guess the pagerank of that site won't change until the regular Googledance of the following month. So one whole month is lost.

Is there a deadline until when a site has to be added to Yahoo in order to influence the pagerank in the Googledance of the same month? E.g. would a site that is added on March 15th still be used for the calculation of the pagerank update done end of March?

[hakre]

because you don't know if your site will added to yahoo - even if you pay them for express submission - you should add it as fast as possible for a positive side-effect on google.

[zgb999]

We never had a case when Yahoo didn't accept a site but we had cases where it took almost 2 months before Google changed the pagerank because of the entry.

In other cases it is changing the pagerank soon after the site has been added to Yahoo.

There has to be a pattern in that.