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Dublicate content you may have even if you don't change anything the problem is in how the template was made.

yes it is awesome, good ideea to post something like that

Dublicate content means for search engines that you are trying to influence the results with repetitive content , when you'll solve the problem with dublicates see for yourself the results.

you have 3 choises ,

1. redirect

2. cannonical links - be careful with this

3. Change in code of your site rel nofollow to this comboboxes/ filters

4. And it is better do not have these liks in sitemap

make a xml sitemap and submit to gogle webmastertools. RSS feed you can make your own there are many scripts on web and tutorials how to make one. Here is a tutorial :

http://www.w3schools.com/rss/default.asp

that depends on site's target audience and what product do you promote or sell in your website. I'll use for begining in link building and paid search, after that .... make a strategy on target visitors and your products.

you can make descriptions and content for main pages and other pages make rel no follow :), and the dublicate pages will not stop ranking but that is not a good ideea you will be penalised in google's position, read google webmaster begginer's guide, and try to put on pages fresh and quality content for users not for search engines.

I assumed that if he has a blog then he must have some content in it i have'nt looked at his site.

And Chad, other search engines are like google they like good quality fresh content

You can modify the title how often you whant but be carefull that it is relevant to the content of the page and the most important keywords in title are in your content. You can read the begginer guide from seomoz on page optimisation, or google webmaster help

Tompt has the poit it is recomended to use 301 redirection to avoid problems with canonical tag just make a search in discutions and you'll see some results abbout cannonical tags but if you are carefull it will work fine

1 First of all submit your site

a) BING: http://www.bing.com/webmaster/SubmitSitePage.aspx

b) YAHOO: http://siteexplorer.search.yahoo.com/submit

And remove from your httaccess the redirection for slurp(yahoo webcrawler, maybe you have a redirection for it)

use 301 httacces redirect, or cannonical tag

Any change has an impact on seo results sometimes better sometimes bad, it is the content of your site that is good to change often

That's your point of view, everyone sets his picture and that picture needs to have a standart resolution and dimensons, abbout compression it will be slower if not compressed in your case, i don't feel or see any loading problems :), and bandwith it is all about bandwidth you cant afford flood or/and uncompressed content, there are other users who hasn't a good download connection and uncompressed content is a problem for them or have a limited download

I don't recomend to have the resources and database to other server than files, it makes some flood traffic between servers, the resources are harder to load and the site optimum speed is decreased. Also you can't compress this content so they are downloaded independently.

Slow loading is if you have multiple uncompressed resources, but if your site is crawled then it will show to user, it is his decision if he will wait to open the site, maybe if there are 2 sites 1 is better optimised and slow and the other is faster but bad optimized, the advantage will have the one that is better optimized, if they are the same in optimization then there is the probability that google gives the priority to the fastest- in google webmastertools there is a tool that calculates the ownloading speed of the page.

Google webmaster tools have the test tool to check if your website is accesible for mobile search, when you develop a site, and if you want it to be accessible for all mobiles then you have to build a wap version of it, but it is ok if you build the site to web 2.0 standards most of the phones iphones etc have a html compatible browser in them.

The search algoritms I think are the same :).

better check using a software there are lots of them on web.

when you setup a keyword add the exact match of it. read the google tutorial abbout setting kewords

There are many problems that makes a dublicate page:

1. www resolve (domain with www and domain without www, search engines see tem as 2 websites and consideres dublicate content)

2. Parameters used in sending them with get method between pages ex : "?pageId=12&userid=566" here you will use canonical links or exclude them from webmastertools or use robots to block the access to these pages

3. When you use filters or search querys, combobox, dropdown menu, theese components are using get method if there is not specified in form one.

4. I sow your site and you have there many

Telerik.Web.UI.RadComboBox -> here is your problem  see how you manage their parameters and how the forms are validated and how page is loaded canonical tag may be your sollution generally :)