• who is going to visit his website next time ?
• which operating system will be used ?
• what browser will the visitor use ?
• what screen resolution is the visitor comfortable at ?

Nothing is more valuable than the statistics you’ve collected with an analytics tool installed on your web-site to find out the answers for the above questions; however, particularly in the beginning of a new project it’s nice to have some good idea of what kind of configuration your visitors will probably use.

From Recent studies, these are the statistics that show the average profile of a visitor.

1. An average web users browses with Internet Explorer 6.0 that is about 46.1% use I.E 6.0, 20.2% use I.E 7.0 and about 18.5% use Firefox 2.0. Anyways, the general rule still stays. Design for the most modern browsers and then make it compatible for older browsers…
2. The most used screen resolution is 1024*768 that is up to 50% users use 1024*768 screen resolution and about 17.2% use 1280*1240 screen resolution.
3. The most popular OS used by 79.8% users is Windows XP, windows vista is used by 7.4% of visitors and about 3.4% users use Mac Os.
4. Only 50% maximise their browser windows
5. Many bloggers use traffic analysis tools like google analytics, ET tracker.

In most cases these links are not-related links to the website, and their purpose is either referrals from impressed visitors, or ‘link power’.

Linking back to the web designer is traditional and goes as far back as people have been designing websites for people. Google knows it, too. And a link to the person who designed the site is most certainly a valid vote, nofollow would be a LIE – and is so standard it’s usually only questioned in corporate environments and even then, sometimes it’s fine.

SEO is a different story. I have had links back for SEO – voluntarily and gladly given, as a matter of fact, more than once – and it didn’t hurt one iota. I wouldn’t do it again in a competitive market because I think it’s a magnet for competitors of the client to start swiping off the site. Maybe in an obscure visible place (meaning not hidden) I would as a credit (with the client’s agreement) but not right out there where it’s very plain for competitors of the client to see right off.

How much time does it take to index a site based on the keywords targeted?

The wider the topical nature of subpages, the higher level of authority you need to become in order to rank for them all.

It is difficult to break from a traditional website “theme” model and become a know-all authority. That requires many many links straight to the homepage, and many many deeplinks into the content pages. You need everyone in each sub-topic citating your subpage as the authority in that niche.

Wikipedia pulled it off – see that for an example of this in pratice.

If you have a decent internal link structure and navigation, you’ll get all pages indexed. But you’re only likely to rank well on one or two topics (that’ll vary depending on how competitive each keyword term is) without having a massive inbound link structure out there.

Any decent search algorithm will ultimately theme your pages collectively. They will not assume that you’re an authority on everything. That may not necessarily be deliberate, it’s a result of the interlinked structure of the web. If you visualise the web as a collection of topics, and think about which sectors your links come from (particularly the high quality ones), you’ll picture how that bias exists. Link structure is 99% of it, in particular, deeplinks from other authorities in each keyword niche.

I have heard experience from several webmasters that a subdomain per topic works better (at the moment at least) than a sub-directory per topic.

If your pages are actually all related to a parent topic, concentrate on the parent topic and your internal link structure. If you already rank top 10 for “widgets”, it’s far easier to get a page top 10 for “widgets reviews” or “silver widgets”. You still need deeplinks from authorities to the “widgets reviews” and “silver widgets” pages, but you’re already halfway there with your theming.

what time period does it take for directories to influence search engines indexing all the pages of the site?

That depends from search engine to search engine. The trick is to submit and forget – don’t wait for something to happen – keep building content and getting links.

So far, the early leaders in the parking space are the UK based Findacarpark.com, parkatmyhouse.com, peasy.com, the highly touted spotscout.com, and the Chicago-based ParkWhiz.com (although ParkWhiz has yet to fully launch their service).

These parking services aim to take a small percentage of the parking marketplace and/or provide targeted advertising through the mobile phone and web browser. Also I think that layering in sponsored events and activities with searches, could be very powerful – if they can better target me by my previous search history. In addition, I expect these online parking services to be mashed in to e-vite services and event 2.0 sites, as an added-value tool – like we commonly see with Google Maps. For example I’d love to get a classified listing on Craigslist, and click a link to see a Google Map and nearby parking in that area.

For Yahoo this is the typical sign of a ban. Go over everything on the site. Pay special attention to any linking that might appear to be the least bit dubious; Y! (and historically Inktomi) has always been quicker to pull the trigger on this issue.

Generally sites tend to be removed the ‘most’ from what I have seen and experienced due to linking, whether it be interlinking sites on the same network, extensive and reciprocal linking between pages, and even linking out to other directories from a directory-style site.

Junk SERPs is probably the best cause.

Once a site gets a “judgment against it”, as they phrase it, you can forget it in Yahoo.

I know Yahoo is near the top of Alexa, but if you look deeper, all their traffic is under Mail, not search! and that is very true. See the below data. When Yahoo was carrying Google’s results, we saw a solid 5 times the traffic from G.

Here is the data for similar audience

search.myspace.com 117
en.wikipedia.org 116
collect.myspace.com 116
login.myspace.com 116
profileedit.myspace.com 116
bulletin.myspace.com 115
viewmorepics.myspace.com 115

And the top subdomains of yahoo are mail.yahoo.com with 67.5%, login.yahoo.com with 59.8%, search.yahoo.com with 19.3%.

To conclude, Yahoo deindexes the pages only when it pulls a trigger on the site.

Whatever the filter may be You can actually see that Yahoo indexes or deindexes the site faster than Google does