As Nick points out, once the site itself is optimized – keywords are in place, copy reflects a smart usage of those keywords, Meta data is updated and in place – then a smart link building (off-page) effort needs to start. Does tha rich peoples phone numbers t mean that you’re done with your site? Absolutely NOT! Search engine optimization, if done correctly, takes time. Go back to your site, review analytics and see where there are opportunities to make adjustments.
1. Start with your keywords. Search behavior changes constantly, so be on the lookout for keywords on your list that may have changed the way they are used. Your analytics can tell you what keywords are driving traffic and consequently which ones are not. Adjust accordingly.

2. Adjust Meta data based on the new keywords. New keywords require new Meta titles, descriptions, H1 tags, image tags, etc.
3. Adjust and update copy for the new keywords. If you’ve changed keywords you need to make sure that your copy reflects those changes.
4. Have a blog? Write some blogs using the new keywords. This will help boost your site (at least in the short term) for the newly added terms.
5. Update your XML sitemap.