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When looking at links and how search engines look at "social signal," does it matter if a link is 301 vs 302? In addition to that, if I build out my own short URL system that gets used for link redirects that include referral attributes, would/could I get penalized if I use 301 instead of 302?

I did a quick search for "site:bit.ly" and it returns more than 10 million results. Given that bit.ly links are 301 redirects, why are they being indexed in Google and ranked according to their destination? I'm working on a similar project to bit.ly and I want to make sure I don't run into the same problem.

Similar to the eBay situation with "expired" content, what is the best way to approach this? Here are a few examples. With an e-commerce site, for a seasonal category of "Christmas" .. what's the best way to handle this category page after it's no longer valid?  404?  301?  leave it as-is and date it by year? Another example.  If I have an RSS feed of videos from a big provider, say Vevo, what happens when Vevo tells me to "expire" a video that it's no longer available? Thank you!

I've been looking at some bigger enterprise sites and noticed some of them used HTML like this: <a <="" span="">data-href="http://www.otherodmain.com/" class="nofollow" rel="nofollow" target="_blank"></a> <a <="" span="">Instead of a regular href="" Does using data-href and some javascript help with shaping internal links, rather than just using a strict nofollow?</a>

I'm building out a specific section of our site and I want to make sure I target it correctly. Is there a rule of thumb when to know how to use "car" vs "cars"? (as an example) Is there a specific way to research the right approach? thank you!

We have a website with a large member base where users share content a lot.  But the SEO problem I have, is that every share needs to reflect a "referral link" so that if a new user signs up, the original sharer receives "referral" credit for that sign up. I really want to be able to take advantage of our huge member base and their sharing, but I'm finding it difficult to do so because each user shares a link that has their referral in it. Can anyone think of an SEO friendly method of sharing that both gives our site SEO benefits, as well as providing the referral credit back to the user?

The way our in-house comments system was built, it uses AJAX to call comments as the page is loaded. I'm working on a set of requirements to convert the system over to be more SEO-friendly. Today, we have a "load more comments" after the first 20 comments, then it calls the server and loads more comments. This is what I'm trying to figure out.  Should we load all the comments behind the scenes in the page, then lazy load the comments or use the same "load more" and just load what was already loaded behind the scenes?  Or does anyone have a better suggestion about how to make the comments crawlable for Google?

I'm looking at integrating a better search engine solution on our site and looking for some input on what other people use. I'm aware of SLI Search and Lucene by Apache, do you have any other suggestions for us to look at? Thanks

I see evttag= used on realtor.com, what looks to be for click tracking purposes. Does anyone know if this is an official standard or something they made up?

I have a Title on a page that has more than 70 chars in it, and I also have to include the page type and brand in the title. page type: Type page header: This is the page title of the long title and I need to add more content brand: Brand Is it better to concanenate the title server-side and use a .. instead, like this? Type: This is the page title of the long title and I need to.. | Brand Or, should I put the full Title of the page so that the keywords are available for Google? example, Type: This is the page title of the long title and I need to add more content | Brand I'm trying to keep to the 70 char limit for Google. Which solution is the more ideal situation? Thanks all jonathan