Hello,

I'm working on the same niche (software), the best practice from my point of view is ALWAYS use the same page, and update it according the new release of the product, never remove (you're losing inbound links, Authority and even other important trust factors.

Only is recommended "remove" the discontinued products as by including a 301 to the most similar product page on your site and also take care about never redirect all your discontinued pages to the home page (a very common error).

I hope it helps

Claudio

Hello Ryan,

You can try Alexa, it gives you an estimate of the site traffic and it is free-cost

Dear Morris,

After the Google Panda and Penguin updates, the value of the links has varied, Google has deprecated 100% the links comming from PR sites, (They are no natural links) at this time from Google point of view you're buying these links, even some reputable paid directories don't add any value (you pay and you get listed).

Google now is looking for other signals such as Google+, Facebook likes etc. the link building has changed.

I recommends to put you effort on social channels especially Google+ and second on Facebook.

I hope it helps

Claudio

It is my point of view, on 2011 I bought an expensive  PR package on a reputable PR site and the traffic comming from the PR's was very low and also the value of these links was low too, so I recommend again put this money and effort in a social channels campain it will be more valuable in terms of traffic (targeted traffic) and also link value, authority etc.

PR sites has been absolutelly deprecated by Google and also the traffic comming from them is always less than espected.

This is my personal point of view

PS.: In the 90's we were buying PR packages and our rank was increased in a few weeks, today the rank is not affected by PR sites.

Hope it helps