A DigitalPoint Forums thread discusses how long would it take to get back into the Google index after being kicked out. From the day you submit a reinclusion request, how long will it take to get back into the index.
Some people say it can take over 6 months!
As many of you know, a client of mine, Jennifer Convertibles Web Site Hacked & Delisted In Google.com. I submitted a reinclusion request yesterday morning around 7am (EST). The site has fixed the hacked area but removing the script that created them.
The Google Webmaster Central Sitemaps page for this particular domain still reads;
No pages from your site are currently included in Google's index due to violations of the webmaster guidelines. Please review our webmaster guidelines and modify your site so that it meets those guidelines. Once your site meets our guidelines, you can request reinclusion and we'll evaluate your site.
We did our best to figure out how they got that script on their in the first place, but since we do not run the server, we do not have enough access to determine the way it was hacked. So it can easily happen again, if we keep things the way they are.
In any event, currently the site is spam free and I will keep you posted on when the site is reindexed.
Forum discussion at DigitalPoint Forums.
Update on this at Jennifer Convertibles Web Site Back in Google.