As far as when to submit sitemaps, you do not "need" to even submit one. After your initial sitemap is submitted, as long as you have a strong interlinking structure in place, your new pages should be crawled. Submitting a sitemap when you add new pages is more or less a "heads-up" to Google saying, "I added new pages here... you should crawl them when you have time."

Now, if you remove pages from your site, you should also make sure that your sitemap reflects these changes. If you do not, you will start to get 404 errors in Google Webmaster Tools.

I don't think you can overdo it; however, you would probably make less work for yourself if you only resubmitted when you are 100% sure you actually need to.

Does that make sense?

Mike

I am confused. I am no .htaccess expert; however, I think you should have your old domain in the condition and the rule should have your new domain... like this maybe?

RewriteEngine On
RewriteBase /
RewriteCond %{HTTP_HOST} !antrimscomplete.com$ [NC]
RewriteRule ^(.*)$ http://agoodsweep.com/$1 [L,R=301]

Mike

Right on.

So here is an example for you. You sell designer men's apparel, but you also sell fishing and hunting apparel. Both apparel, but completely different types of audiences. You could have designerapparel.com (your main designer men's apparel site) and a microsite of outdoor.designerapparel.com. This subdomain microsite approach would carry some of your domain authority to the subdomain, all while providing a good experience for users, because the audiences and end product are so different, even though they are men's apparel.

Kind of a funky example, but I hope it illustrates how it can be used for men's apparel.

In your case, (although I don't know your business plan or customer segments, etc.) I would not worry about doing microsites.

Mike

It all depends whether it makes sense for your business.

For instance if you sell shoes, you would probably not benefit from having an Armani microsite and a Nike microsite UNLESS you want users to assume you ONLY sell Armani or ONLY sell Nike.

The company I work for uses microsites, because our main site is just too generic. We sell software and our software can be configured for any industry, but to say that can deter some people. So we have our main site (just examples here) software.com and microsites food.software.com, jewelry.software, animal.software.com - this approach works for us, because we have slightly different solutions for each of these industries and we do not want to look too generic or single people out if we listed these on our main site.

Some of it has to do with SEO, but really think about it from a marketing standpoint and how you want to market to your visitors. We want to market to visitors with a microsite saying, "We have awesome food software" instead of saying with our main site, "We can tailor your software for the food industry".

It has worked great for us having microsites. It is a little more work, because you need to manage multiple sites and have unique content across multiple sites, but we are seeing really good returns.

Hope this helps.

Mike