ALT tags are HTML elements used to specify alternative text to display when the element they are applied to (such as images) can’t be rendered. ALT tags can have a strong correlation with Google SEO rankings, so when you have images and other elements on your web pages, be sure to always use a descriptive ALT tag with targeted keywords for that page.
That's why it's necessary to always stay abreast of developments in the SEO world, so that you can see these algorithm updates coming or you can determine what to do once they’ve been released. The WordStream blog is a great resource for SEO updates, but we also recommend Search Engine Land and Search Engine Roundtable for news on updates. Glenn Gabe of G-Squared Interactive is also a great resource for analyzing the causes and impact of algorithm updates.

James is an Ecommerce consultant and owner of Digital Juggler, an E-commerce and Digital Marketing consultancy helping retailers develop, execute and evolve E-commerce strategies and optimise their digital channel. With a background as a Head of E-commerce and also agency side as Head of Client Development, he has experienced life on both sides of the fence. He has helped companies like A&N Media, Sweaty Betty and Smythson to manage RFP/ITT proposals. and been lead consultant on high profile projects for Econsultancy, Salmon and Greenwich Consulting. He is a guest blogger for Econsultancy, for whom he also writes best practice guides, regularly contributes to industry events and co-hosts #ecomchat, a weekly Twitter chat for e-commerce knowledge sharing. For e-commerce advice and support, connect with James on LinkedIn and Twitter.
Early versions of search algorithms relied on webmaster-provided information such as the keyword meta tag or index files in engines like ALIWEB. Meta tags provide a guide to each page's content. Using metadata to index pages was found to be less than reliable, however, because the webmaster's choice of keywords in the meta tag could potentially be an inaccurate representation of the site's actual content. Inaccurate, incomplete, and inconsistent data in meta tags could and did cause pages to rank for irrelevant searches.[10][dubious – discuss] Web content providers also manipulated some attributes within the HTML source of a page in an attempt to rank well in search engines.[11] By 1997, search engine designers recognized that webmasters were making efforts to rank well in their search engine, and that some webmasters were even manipulating their rankings in search results by stuffing pages with excessive or irrelevant keywords. Early search engines, such as Altavista and Infoseek, adjusted their algorithms to prevent webmasters from manipulating rankings.[12]
Search engines reward you when sites link to yours – they assume that your site must be valuable and you’ll rank higher in search results. And the higher the “rank” of the sites that link to you, the more they count in your own ranking. You want links from popular industry authorities, recognized directories, and reputable companies and organizations.
There are many reasons explaining why advertisers choose the SEM strategy. First, creating a SEM account is easy and can build traffic quickly based on the degree of competition. The shopper who uses the search engine to find information tends to trust and focus on the links showed in the results pages. However, a large number of online sellers do not buy search engine optimization to obtain higher ranking lists of search results, but prefer paid links. A growing number of online publishers are allowing search engines such as Google to crawl content on their pages and place relevant ads on it.[16] From an online seller's point of view, this is an extension of the payment settlement and an additional incentive to invest in paid advertising projects. Therefore, it is virtually impossible for advertisers with limited budgets to maintain the highest rankings in the increasingly competitive search market.
You could get even more specific by narrowing it down to customer base. Is there a specific group of clients you tend to serve? Try including that in your long-tail key phrase. For example: “SEO agency for non-profits in Albuquerque NM.” That’s a key phrase you’re a lot more likely to rank for. Not to mention it will also attract way more targeted, organic traffic than a broad key phrase like “SEO agency.”
Optimization techniques are highly tuned to the dominant search engines in the target market. The search engines' market shares vary from market to market, as does competition. In 2003, Danny Sullivan stated that Google represented about 75% of all searches.[63] In markets outside the United States, Google's share is often larger, and Google remains the dominant search engine worldwide as of 2007.[64] As of 2006, Google had an 85–90% market share in Germany.[65] While there were hundreds of SEO firms in the US at that time, there were only about five in Germany.[65] As of June 2008, the marketshare of Google in the UK was close to 90% according to Hitwise.[66] That market share is achieved in a number of countries.
At our agency, we work with sites of varying sizes, from very large to quite small, and recently, we have noticed a trend at the enterprise level. These sites aren’t relying as much on Google for traffic any more. Not only are they not relying on Google traffic, but also, the sites are getting less than 10 percent (or slightly more) of their organic traffic from the search giant.