Do you want to increase your pagerank? Do you want to know how you can 
increase your pagerank? Increasing your pagerank is much easier than  understanding its algorithm.Let me tell about the pagerank algorithm.
As an introduction , 
pagerank represents the 
importance of a website in the vast internet, where a higher pagerank means better  importance in search engines. Pagerank is scaled from 0 to 10 and becomes  interesting when involves traffic, The websites with high ranks will win more  traffic from search engines.
Before starting, you should know that pagerank is updated once in 
3 months. Therefore, you should not expect any changes soon after you start working on it.
Dofollow inbound links (backlinks) are the most critical aspect in calculating your pagerank. Dofollow means that your link will be crawled  by the bots / spiders of search engines, nofollow is the contrary, and  both are set using anchor text attributes. If all your pages in your blog are linked each  other perfectly, you will get a pagerank of 1 easily. 
So, here are some methods that can increase your pagerank, starting from the easy ones:
1. Interlinking post
Good dofollow linking (internal site navigation) inside your website  will be helpful in increasing your pagerank, but it can only helps to reach a  pagerank of 1 without external links. Interlinking can be easily done using an 
archive widget which can be placed in your sidebar, or a 
sitemap.  It will render all your posts / pages connected each other handsomely,  since your sidebar / sitemap goes to all your posts / pages.
2. Natural DoFollow Linking
When bloggers write something, they usually put 
some external links as  an additional information for their readers. The links inside posts are  usually dofollow, unless the bloggers specifically and manually defines  nofollow attributes.
Here is how you can apply it: first you need to write 
good genunine contents.  If then people read and get impressed, there is a good chance that they  will put your links in their own website / articles without asked (as  additional resources). It gains you more dofollow inbound links, gives  you more votes, and you grows your pagerank.
More great (not just good) contents means more chance of getting natural dofollow backlinks.
3. Guest post
This  is one of the most used and best technique to increase Page Rank for many past years in blogosphere. Most Big  Blogs have options of
 guest posting through which you can post at their  blog and get two or three backlinks (Dofollow) in return to your blog this really  helps if you are posting on good Page Rank Blog with the same Niche as  yours.
4. DoFollow Link Exchange
Link exchange between sites / blogs is a common thing in the blogosphere  / internet. If you have some friends who have websites or blogs with good traffic and pagerank, you  can request for dofollow link exchanges. When you can get more of this  exchanges, you will earn more votes. Thus your pagerank will increase.
Getting some dofollow link exchanges with 
quality sites (higher ranked and relevant) are even better.To get link Exchanges,One should be friendly with other bloggers.
5. DoFollow Reviews
Asking bloggers to write reviews / advertorial about your site (with  your dofollow backlinks inside them) will also help building your  pagerank. Some reviewing services gives you dofollow links by default,  while in some others, you need to manually state that you require  dofollow links in the reviews.
You will need to spend some funds for this method, which is best for products and services.
6. DoFollow Text Link Ads
There are lot of websites that provide services in text link ads such as Infolinks, Chitka, Clicksor,etc,. Some  of them provide dofollow 
text link ads, which can help you to increase  your pagerank. These type of ads will make the websites (where they are  located) vote for your site and increase your pagerank.
Text link ads are usually not free and you should spend dollars for it!
Group Discussion and Questions - Answers:
1. How high can my pagerank will grow? The persons who blog as a hobby can easily attain a pagerank of 1 and 2.Some full time blogger like Mustaffa of mybloggertricks , Paul crowe of spiceupyourblog.com and Harish of way2blogging.org can attain a pagerank of 3 to 5 .Super successful and famous bloggers like Darren Rowse of  Problogger.net and Brian Clark of Copyblogger.com can get 6-7 in  scale.Traffic audit sites like alexa.com can attain a pagerank of 8. Search engines like google,Yahoo and Bing can attain a pagerank as high as 9.And Social Medias like facebook and twitter can get the ultimate 9-10. 
If a blogger wants to attain a pagerank of 8 and above, he's dreaming.
2. Can leaving comments in other blogs / websites increase my pagerank?Yes,sometimes .Only if the blogs comment are dofollow, which allows the search engine  bots/ spiders to crawl your links inside the comments sections. Most  blogs in the web are Nofollow in their comments section to avoid abuse  and spam and not to leave their link juice. Leaving comments in nofollow sites will increase your link popularity, but not  pagerank.You need dofollow backlinks to increase your pagerank.If found any dofollow blog, always try to become a top commentors of that blog.
(True Blogger Tricks is a dofollow and dont forget to comment in this blog!!)
3. Can social media websites increase my pagerank?No, absolutely they cannot. All social medias automatically add nofollow attributes  to all links inside them to avoid spam or abuse.It is Same like nofollow commenting, it will increases your link  popularity but not your pagerank.
4. Black Hat pagerank building may work, why don't you mention it here?
Search engines actively fight black hat pagerank building (like keywords  spamming, hidden link, etc), because they want to ensure that high  ranked sites are really valuable to online society, not just because  they can hack things using their techie knowledge.
It's like getting money, you can get money from providing satisfying  services to others, or by robbing or stealing from others. Both give you  money, just which methods you want to use. Natural and black hat  methods can increase pagerank, your purpose defines which one you will  choose.
Besides, using black hat methods can result in ban or penalty from search engines.
Its all friends.Feel free to try and don't hesitate to let me know if I missed something.