If you are selling some products you may wanna consider getting better ranks at Google Products as well.
Taken from "http://www.seomoz.org/blog/how-to-rank-well-in-google-products-search-a-big-list-of-places-to-get-reviews" here are some major factors that effect ranking for Google Products:
Title
Having your keyphrases placed strategically in your title tag can help you rank, just like with regular
SEO.
Price
If you sell a product cheaper than your competition, you stand a better chance of ranking higher than places which sell it more expensively. Capitalism ftw.
Description
Having a well-thought-out and keyphrase rich description is important. As far as I can see, Google doesn't crawl the URLs you submit to them for any ranking factors - they take all the information from your data submission, so a description can help you rank for long-tail phrases which you can't cover in your title tag.
Data-Stuffing
Data stuffing is so the new keyword stuffing. What do I mean by data-stuffing? Well, in Google Base you have the options to upload data for all kinds of fields. Only the bare minimum are essential, and most are optional. In my experience, however, I've seen that adding more data-fields helps you rank higher and for more varied queries.
Fresh Data
This is actually a ranking factor which Google recommend to get higher rankings, so it would be remiss of me to not include it in this list!! Fresh data, as in updating your feed as often as possible or setting the scheduler to crawl your feed frequently, helps both your rankings and the accuracy of your data. Since Google doesn't crawl your pages, it's important to ensure your feed is up to date with the latest descriptions, prices and names.
Positive Reviews
Notice how I've not included pagerank (or mR) on this list? That's because I'm not sure how important it is to have a trusted domain in the traditional
SEO-sense. More importantly, I think, is having a trusted domain in the traditional sense of the word. How does Google measure that? With reviews. Getting positive reviews for your site helps a lot with Google Local, and it's the same principle for Google Base. Although I've not listed these tips in order of importance, I think this is definitely one of the strongest ranking factors, particularly for competitive queries. So, to help you out with your Google Base rankings, I've listed below all of the sites which Google permits as review sites for use in Google Base. Before I list them though, I should point out that there's one site which Google seems to favour above all others for trusted reviews. There'll be no prizes for guessing who it is.... Yep, Google Checkout.
In my experience and research, Google Checkout reviews seem to count for more than reviews left on 3rd party sites. This does seem to make sense since these reviews are presumably more trusted by Google (since it controls the spam filtering and authentication) than 3rd party reviews. That said, it does mean you have to have Google Checkout enabled to profit from them!
An interesting aside here: it's not something I've tested, but if I were building a ranking algorithm based on reviews, I would make the raw number of reviews count as a ranking factor, positive or negative. Why? Because this signifies trust and brand awareness. The more people that are leaving reviews about you, the bigger your brand is. Given Google's shift towards brands recently, I wouldn't be surprised if this was a factor so bear this in mind when getting reviews.
Ranking Better At Google Products
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