tembolok atau cached website
ketika googlebot melakukan crawling pada suatu situs maka isi dari situs web tersebut akan disimpan ke dalam cache atau bahasa indonesia-nya tembolok. seperti gambar di bawah ini.
jadi jika pada suatu pencarian kamu menemukan suatu situs dan pas di klik situsnya ga bisa dibuka itu mungkin karena situsnya sudah tidak ada lagi. tapi kamu masih bisa membuka halaman website tersebut yg memang udah di simpan oleh google dengan meng-klik cached atau tembolok pada halaman pencarian seperti pada gambar di atas.
PS: kenapa aq menulis ini dalam bahasa indonesia karena ternyata banyak yg ga ngerti apa itu tembolok atau cached. nah skrg udah ngerti kan setidaknya? 
wayback machine for website
archive.org is a site that collects all the interface of a certain website based on the time. so you can see a website from as early as year 2000 to the year of 2010 now.
This archive is to collect and retain digital material for future historians. So you will see many collection of website being saved there. for example I look at detik.com news portal at the year of 1998. Here is the picture that I had taken
ustart.org as a homepage
I am using ustart.org as my homepage. it has a clean design, I can see my gmail, facebook and also RSS feed including news and posting note. this is a great site to begin with when you open your browser for the first time. I had set this site in my homepage browser then. 
Gus dur and his legacy
It is said that when in death everything became clear. This is what happen to gus dur, indonesia 4th president. Now that he died everyone started to missed him a lot, they even want to make gus dur a national hero. But when gus dur was still alive they think of him as someone who even failed to manage his own PKB party.
There is a lesson here that we need to take, that is we must think the best of everyone that we know and don’t think them badly before you know the true character of that person.
But for me then yeah RIP gus dur.
post your wordpress blog to twitter
if you want to post your blog posting to twitter then here is the way to do just that.
1. first you had to login to your account in wordpress
2. go to dashboard
3. click on my blogs
and after that you’ll see twitter and click on that then you will be directed to your twitter account page for logging in
posting your blogpost in twitter is one of the way to make your blogpost more famous as everyone will more likely to read it.
why my wordpress blog is suspended
actually yesterday if you try to open this blog then you will see an error display that said I had violated the TOS agreement between me and wordpress. here is the full message from worpdress to me.
This blog has been deactivated because we believe it does not comply with the WordPress.com Terms of Service or advertising policy.If your blog is designed to promote affiliate links, get rich quick programs, banner ads, consists solely or mostly of duplicate or automatically generated material, or is part of a search engine marketing campaign, WordPress.com is not the place for you. Please use the Export feature to move your content to a more appropriate hosting service.
Occasionally we make mistakes. If you believe we have misclassified your blog, please click here to contact us as soon as possible so we can fix the problem
so as you can see I was pretty upset of what’s happen to this blog as I can’t access it. So I send an email to wordpress and waited for almost a day and here is the reply email that I had receive
Mark - WordPress.com
Mon, Jan 4, 2010 at 6:00 PM
Reply-To: tosreports@wordpress.com
To: jacobian@opensuse-id.org
Hi,
Could the link to geekchoice.com be removed please?
They are known spammers,
thanks.
-
Mark
now can you see the problem I am having? it’s because I post the wrong link in my wordpress blog then the admin in wordpress decided to suspend my blog without telling me about this beforehand. well gladly after more then a day the access to my blog was restored and now I can blog easily.
oh yeah, I almost forget. thanks for wordpress then for doing this
Cannot update post
I am currently unable to update my blog post in wordpress because my laptop is broken so it would take 2 weeks for me to get a new laptop.so till then please feel free to give any comments in my posting.
PS: I had to use operamini to post this.
Testing to post using operamini
I am just testing how to post in wordpress using operamini. I use m.wordpress.com as the url.
daytum as a self-analysis tools
if you are interested in self analysis for your daily routine then there is a great website that can help you with that. the site are called daytum
in this site you can do self-analysis, such as your workout routine, your food and everything that you routinely been doing. for example I am compiling all the stuff that I had eaten and put it in daytum. so it would be like the picture below.
after that I click on the pie chart option and it will show me the graphical analysis of my food intake so I will know what most food that I always eat.
actually we always put many information of our lives in facebook, twitter and blog. but by using daytum you put it all in one place and daytum can sum it up all for you.
how to calculate pagerank
in this post I’ll tell you how to calculate pagerank. do you know what is pagerank? pagerank is an algorithm use by google to calculate the weight of the website. so the website that has pagerank of 9 will be display above the website that has a value of 8 and so on.
look at the picture below. remember that I put the picture by using its number as a reference. as an example the picture below is picture 1.0
you can see the above picture 1.0 that 4 is the authority page and has many incoming links. we can assume that the number 1,2,3,4,5,6 are the real website address and they are linking to one another. now we should make matrix representation based on the above picture
based on the above picture 2.0 we start from P1 (originating node) to P2 (destination node) now we should see that P1 has a link to P2 and given a value of 1. P1 also has a link to P3,P4,P5 and given value 1 but P1 doesn’t have a link to P6 so we gave the value 0. and we map every originating link to destination link so we able to know the value. After we finish then we make another table just like the picture below.
in the above picture of 3.0 then we can see that P1 in the citing page get value of 0.25 in the P2 of cited page. we get this value by dividing 1 with 4 and equals 0.25 and then we did the same thing with P2 but we divide 1 with 2 that equals 0.5, and then P3 divide 1 with 1 equals 1, and then P4 divide 1 with 1 equals 1, and then P5 dividing 1 with 3 equals 0.33 and then P6 dividing 1 with 1 equals 1.
we should take note that P1 that has a value of 1 in the picture of 2.0 has 4 column that has 1 so we divide it with 4 and it equals 0.25, and then so on.
and now we must initially set all pages to have weight 1
we can see at the above picture of 4.0 that Wo is set to 1, so all the page get minimum pagerank in the value of 1. and then we multiply the matrix of Wo with the picture 3.0 as in the matrix multiplication. I hope you still remember how to do matrix calculations then. but let me remind you a bit.
we need to get the value of W1 and the formula is W1 = B.Wo and it works like this
1 x 0 + 1 x 0 + 1 x 0 + 1 x 0 + 1 x 0.33 + 1 x 0 = 0.33
1 x 0.25 + 1 x 0 + 1 x 1 + 1x 0 + 1 x 0 + 1 x 0 = 1.25
1 x 0.25 + 1 x 0.5 + 1 x 0 + 1 x 1 + 1 x 0 + 1 x 0 = 1.75
1 x 0.25 + 1 x 0.5 + 1 x 0 + 1 x 0 + 1 x 0.33 + 1 x 1 = 2.08
1 x 0.25 + 1 x 0 + 1 x 0 + 1 x 0 + 1 x 0 + 1 x 0 = 0.25
1 x 0 + 1 x 0 + 1 x 0 + 1 x 0 + 1 x 0.33 + 1 x 0 = 0.33
after we perform the above calculations then we make the matrix of W1 like the picture below
well the picture 5.0 above is the result of the calculations that I had done in picture 4.0
you should also know that pagerank is all about iteration, in the above example we only do 1 iteration. the formula is as follows.
Wk = B. Wk-1
so in the end we will get the result as shown by the picture below
look at the above picture 6.0 in the picture you can see that we already calculate W1 and to get W2 we have to do the same calculations as above in picture 4.0 but we had to use W1 multiply by B instead of Wo and then to get W3 we had to use W2 multiply by B instead of W1. this iteration will keep happening until we reach the limit number of 0.00. if we reach 0.00 then we already had the pagerank for the website that we are trying to calculate
anyway I know this explanation will made you had a headache, But I am merely trying to teach you how to do calculations in pagerank algorithms. please comment me if you still do not understand how it works.
PS: please click on the picture above so you will see the picture clearly as my current theme doesn’t support posting picture with large pixels.
