Amiga Demos 101: State of the Art

What is a Demo? A “demo” (short for demonstration) is a multimedia presentation designed to show off both the graphical capabilities of the computer and prowess of the programmer. The Commodore Amiga was a popular platform for demo creators due to its advanced (for the time) and standardized hardware (as opposed to a PC, which comes shipped with many possible hardware configurations). Most demos...

May 30th, 2008 by Blink 7 

Tutorial: Adding Hotlink Protection to WordPress

What is Hotlinking? Hotlinking (also known as inline linking, piggybacking, leeching and bandwidth theft) refers to when one site links directly to an object on a second site. Typically, the object is a picture that can then be displayed on the linking site without the owner having to copy the actual file from the second site. How Hotlinking can Affect your WordPress Blog Hotlinking not only allows...

May 21st, 2008 by Blink 7 

Fixing the CPanel HotLink Error in WordPress

Identifying the Problem Using CPanel, you turn on Hotlink protection to prevent outside hot linking to your files from unauthorized sites. Enabling Hotlink protection causes a 404 error for previously-working WordPress URL’s (more…)
May 19th, 2008 by Blink 7 

Excel Tutorial: Using Conditional Formats for Traffic Lighting

Simplicity is key when presenting statistics to management or customers. Data analysts are often tempted to put as many details as possible on the standard “one sheet” template; however, too many numbers on a page can cause confusion about where to initially focus. When reducing the number of statistics on a page is not an option and summary stats are not appropriate, traffic-lighting is a quick...

April 12th, 2008 by Blink 7 

SAS Tutorial: Creating Categories with PROC FORMAT

When performing data analysis on a cohort population, it is often desirable to categorize characteristics can have many values. Age, income level and credit card score are examples of population attributes that can be placed into “buckets” and easily analyzed based on broad categories (without having resort to linear or logistic regression). While variables can be quickly encoded using IF statements,...

February 28th, 2008 by Blink 7 

SAS Tutorial: Loading Tab-Delimited Files

Imagine you are given a list of major Canadian political donators and wish to load it into SAS for further analysis. The list is in a text file with fields delimited by tab characters. SAS Enterprise Guide (EG) offers wizards to automatically import a variety of file formats, but using these GUI’s preempts the chance for automation or additional processing during import. Using code to load data...

January 25th, 2008 by Blink 7 

The $699 Memory Stick

When buying electronics, two factors remain relatively consistent - If it’s new, it costs a lot more If Sony is involved, it costs a lot more Yet, even these two truisms fail to account the the $699cdn (roughly the same in American dollars) price tag placed on a (third-party!) Memory stick currently being advertised at Staples. Granted, 4GB cards are relatively new but can be obtained for...

January 23rd, 2008 by Blink 7 

Tutorial: Spotting a Phishing Scam in your Email

Phishing, in practical terms, is an attack used by hackers to gain access to private information such as credit card numbers, social insurance numbers and user passwords. Rather than breaking down a physical or technological barrier, phishing is a social engineering attack where targets are typically duped into providing this information directly to false versions of legitimate websites run by the...

December 26th, 2007 by Blink 7 

Tutorial: Manually Adding Digg Support to WordPress

What is Digg? Generally referred to as a social news site, Digg is technically a user-driven news aggregator. Registered Digg users can “digg” (i.e. bookmark and submit) an article on a web page by submitting a URL, along with a brief description. URL submissions are placed on display for other Digg users (registered or not) to read, comment on, rate, and bookmark for themselves. How Digg can...

December 20th, 2007 by Blink 7 

Tutorial: Two Ways to Lookup Your Own IP Address

What is an IP address? An IP (Internet Protocol) address is a unique address within a network used by devices to communicate with other devices within the network. Computers, printers, routers, and network hard drives are examples of devices that could have an IP address within a network. IP addresses are generally assigned according to country and internet provider. There are also some specially...

December 17th, 2007 by Blink 7