Please could WW-ers give their thoughts on onsite and offsite strategies for large-scale sites with 1,000,000+ pages.
The site in mind is an aggregator site, searching huge numbers of classifieds listings from selected sites and putting them into a database.
- Generate the most possible number of indexable URLs, competitor sites have huge content so the more pages the better including but not limited to all permutations of country, state, city, post title, company and similar variable.
- Use the simplest possible URL structure with ideally no dynamic URLs
- Make the database both as large as possible, and the site as functional as possible so users can find small numbers of highly targeted results. For aggregator sites it's all about finding the postings you want and getting word-of-mouth referrals.
- Do typical link building strategies apply? It's possible to build links to the front page and selected keyword pages for particularly relevant/profitable keyphrases, but the sheer number of long-tail searches makes me wonder where to start. Competitor sites don't seem to be doing SEO as such at all, rather they just concentrate in building a killer database and site usability and word-of-mouth referrals, links and large numbers of organic searhc results grow naturally.
Any and all thoughts you have for particular strategies to employ for SEOing a large aggregator site, please write here!