Saturday, August 20, 2011

Comment Blaster v1.5 (Free Scrapebox Alternative)

Comment Blaster v1.5 is here!
  • Select urls based on page ranks. You get to choose the URLs based on the page rank you specify. Now you can just enter >5 or <9 or 2-5 to select urls with pageranks greater than 5 (non inclusive), pagerank less than 9 (non inclusive) and urls with pagerank between 2 and 5 (inclusive).

  • Select Inverse
  • Open in Browser. Launch the url in your browser for preview.
  • Multi-threading issues have been fixed.
Although the updates don't seem to be of desired "magnitude", these are really time saver and help you in building high quality links for your campaign.

Wednesday, August 10, 2011

PayPal Case Study

PayPal is an online payment gateway that allows payments and money transfers to be made online. Its corporate headquarters is in San Jose, California, European headquarters in Luxembourg and international headquarters in Singapore.  Currently PayPal has over 232 million accounts out of which 94.4 million accounts are active and operates in more than 190 markets. It allows customers to send, receive and hold funds in 24 currencies worldwide. It is the largest company in the world to provide this kind of service. The most basic services offered by PayPal are
·         Secure online payment for shopping
·         Sending money to anyone
·         Merchant solutions
PayPal is an acquirer performing payment processing for online vendors, shopping sites and other commercial users for which it charges a fee.


PayPal was founded by Ken Howery, Max Levchin, Elon Musk, Luke Nosek and Peter Thiel after the merger between Confinity and Confinity was founded in 1998 as a Palm Pilot payments and cryptography company. was founded in 1999 as Internet financial services.
EBay, one of the largest online auction and shopping site in the world acquired PayPal in 2002 for $1.5 billion. After seeing massive rise in volume of its online payments, eBay purchased Billpoint payment system before the existence of PayPal and made it official. But due to the limitations imposed by eBay on Billpoint by narrowing it to only payments made for eBay auctions, PayPal soon became popular among eBay users and more than fifty percent of eBay users chose PayPal as the payment method. After that eBay decided to purchase PayPal.


PayPal requires users to register to their website before using the services.  They collect all personal information including bank account numbers, credit card numbers, social security numbers and other information to verify that the user is legitimate user. Users can then top up their PayPal account by either sending funds from banks, credit cards or debit cards. The balance they have in their PayPal account can be used in various online stores worldwide. The main benefit of using this service is the users don’t have to reveal their bank or credit card information to the online stores. They simply use the email address that they used to register at PayPal. The only thing required for sending and receiving payments is email address. This is a huge security boost as no sensitive information such as bank statements or credit cards is exchanged between the parties. PayPal takes a fee in every transaction where the receiving party has to pay the transaction fees in most cases.

Security and Safety

PayPal uses 256 bit encryption for secure connection between it and the users. The identity of PayPal is verified by VeriSign. VeriSign is the leading provider of digital trust services. These trust services create a trusted environment for engagement in commerce and communications.  By encrypting the data exchanged, there is less chance of attackers to break the communication and get unauthorized access to the restricted areas or steal sensitive information.

At hardware and software level PayPal ensures that the incoming, outgoing or stored data are secured by performing various tasks such as
·         On users computer it confirms that the browser is running Secure Socket Layer 3.0 (SSL) or higher which gives maximum possible protection.
·         Information exchanged is protected by SSL with encryption length of 168 bits which is the highest level commercially available.
·         On their server, personal information is guarded heavily, both physically and electronically. And also, they don’t directly connect their firewall protected servers to the internet.
To protect users and merchants against fraud and security issues PayPal offers a number of services including
·         Ability to buy and sell without sharing personal or business information
·         24/7 account monitoring with latest anti-fraud protection
·         Tools and tips to help fight phishing and identity theft
·         Protection from buyer claims and chargebacks
·         Convenient process for responding to disputes
·         Seller verification and buyer address confirmation
Besides their standard security measures, PayPal has also implemented an optional security key, an additional precaution against fraud. In this system, a user account is tied to a security key has a modified login process where the user enters his/her login ID and password as usual and then he/she is prompted to enter the security code. The security key generates a random security code that needs to be entered along with username and password.

Buyer/Seller protection

In case of disputes or frauds, PayPal has protection policy that buyer or seller may open a dispute. PayPal's Buyer Protection policy states that the customer may file a buyer complaint within 45 days if they did not receive an item, or the item was significantly different than stated. And for the sellers, its policy protects in a limited fashion via Seller Protection Policy. It is intended to protect the sellers from chargebacks or complaints if the seller meets certain conditions including proof of delivery to the buyer.

Consumer complaints and criticism

Since PayPal is not a bank and does not provide its merchants with real Merchant account, they do not need to follow Federal Banking Regulations. PayPal has the ultimate control over the accounts of the users. Everyday there are hundreds of complaints about PayPal freezing the accounts without any notice or warning. When an account is frozen one cannot withdraw the money but can receive the money. According to San Francisco Chronicle, there are about 100,000 complaints outstanding at PayPal of which the disputes can run for months leaving people frustrated as they are unable to access their accounts.
Some of well known incidents of PayPal freezing the accounts are listed below.
·         In September 2005, owner of website set up an account to collect donations for Hurricane Katrina to be given to Red Cross. This account was frozen by PayPal.
·         In March 2010, PayPal froze donations to Cryptome, seizing over $5300 in transit donations.
·         In September 2010, PayPal froze account of Markus Persson, developer of independent video game Minecraft. His account contained around 600,000 euros.
·         In September 2010, account of TortoiseSVN, an open-source revision control software, was frozen.


PayPal was one of the first online payment services and had a great start. With over 230 million accounts, 1000 support staff working 24/7 and its commitment for safe, easy and hassle free online transactions PayPal has become the most successful online payment gateway in the world.

Written as a part of case study on e-Commerce in Nepal by Sanjay Subedi (BSc IT 6th Semester)

Tuesday, August 9, 2011

Nepali e-haat Bazzar (B2B E-commerce Service Nepal)

Nepali e-Haat Bazaar is the National Business to Business(B2B) e-commerce Market Place as a single electronic gateway to promote the market linkage within the country and with the international markets. The B2B e-commerce website is implemented with the objectives of using ICTs to reduce poverty within the country. This is a joint initiation of Rural Urban Partnership Programme (MLD/UNDP) and High Level Commission for Information Technology and Agro Enterprise Center/Federation of Nepalese Chamber Of Commerce and Industries.  This business website is hosted by UNDP and USAID, managed by AEC and supported by the High Level Commission for Information Technology to allow the grass-root people and traders like local farmers, and small scale industries to interact with big enterprises and organizations to promote the local product like medicinal herbs, daily use products such as tea and other home-made products to the local or national and international market. It is an Electronic Commerce website where the transaction is mainly between two organizations. The website is open to all the interested parties. The website can be viewed as a B2B Post and Browse Market where the site is used to provide a market space where the trading partners or participants and interested parties can post, buy and sell opportunities and product and services on an e-bulletin board. Interested parties and trading partners can meet through the postings and negotiate transaction for themselves.

Saturday, August 6, 2011

Starting Game Development with Ogre/MOgre

So from blackhat I decided to take some break and show off my skills on AI esp on Artificial Neural Networks. But people arent going to get excited after seeing this, just a bunch of numbers that makes no sense at all.
Thats why I decided to make some 3D games and hopefully these numbers will make gameplay experience better. But a journey to make 3D games on your own is a very tough one (3D models, AI, Programming, Audio bla bla).

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