Since you posted in the SEO section, I assume you're going for SEO value? You're not really helping yourself by making your site so graphic...
Will adding parameters result in a different page? If yes, than you'll want to consider your link building strategy. Linking to your home page...
If you're talking Yahoo, just go to SiteExplorer: http://siteexplorer.search.yahoo.com/
One DP has a ton of back links. Two "exotic pets" is a niche topic and "exotic pets forums" is even more niche. Three I checked 10 different Big...
Yeah not really all that new. It's one of those test things they throw out now and again.
I'm wondering what the larger footprint is doing for CTRs.
SEO is all about performance within the search engine rankings. Sometimes it's the ranking algorithm that changes, sometimes it's new robots or...
Read Matt Cutt's take on dashes and underscores (http://www.mattcutts.com/blog/dashes-vs-underscores/). It helps clarify. Basically, for Google...
I would say 99% no. If there are no entry points (links from your site or any other site) for spiders than they won't know your content exists....
I'm usually a supporter of folder over subdomain for SEO purposes, but in the case of a forum, I'd go subdomain. If you end up with a popular...
Use what ever TLD you want, but make sure you own the .com. Otherwise you'll be sorry, because if the bloke who owns the .com wises up and sees...
Separate names with a comma.