This page answers some of the frequently asked questions (FAQ) I get by email with answers. If your question is not answered here, feel free to contact me by email.
If you want to exchange a link with me, the easiest way to do so is to post a comment on the page you're linking to. If the comment is on topic and the link leads to a page that has related and relevant information I'll add your comment.
However, if you're running a SEO (Search Engine Optimization) business and hope that I am going to link to a page you suggest in exchange for an addition to a page with PageRank 3 or less loaded with links, forget it.
In short: I don't do link exchanges.
Currently all advertising on this site is handled by Google. In the first quarter of 2008 I want to have my own advertising service up and running on this site. Email me if you're interested.
I might be interested in reviewing software, books, hardware, etc. and write an article on the product. Note that it will be a non-biased review, and I will state in the article that the product was offered to me for reviewing purposes. You are allowed to comment on the review before publication. If you don't want the review to be published, the hours it took me to write it have to be paid, even if I can keep the product. Products sent to me will normally not be returned.
Now and then I do give permission for a site to use photos or images I have made. The photo will contain a copyright message, and I prefer to have a link back to my site, or to the page on my site containing the photo.
Also, if you want to use a photo in your homework, please ask. Most of the time I will give you permission to do so, and if possible will provide a higher resolution version of the photo.
State in the email which photo you want to use, the dimensions you prefer, and on what site you want to use the photo.
It's fine with me if you create a text link using the HTML a element that leads directly to a photo I have made. However, I would prefer a link to the page containing the photo, also because it might contain additional information for your visitors.
Don't embed the photo or any other image in a page in a way it appears to be part of that page (using the HTML img element, or frames). This is called leeching which results in me blocking the image in most cases, and might result in me reporting copyright infringement to the company that provides the hosting of the site leeching my image. Also don't copy the file to your own server. Please respect copyright.
If a sufficient payment can be made I might be tempted to give a written permission for publication of photos I have made in magazines, books, etc.
Please email me with the details, and the offer. However, don't email me if you have a "non-profit company" not able to pay me next to nothing.
Yes, I can review your Perl program, and give you useful suggestions on how to improve the program, and/or your programming style. However, depending on the size of the task I require you to pick one or more items from my wish list as a reward for my effort.
If you want me to have a look at a non-working Perl program, reduce the Perl program to the smallest version possible that still has the problem. Make sure that you have:
use strict;
use warnings;in your program, otherwise I won't even look at the program. Also read the answer to the previous question on what I want in return.
In exchange for a free monitor, a free computer, or even a free house I can be tempted to write a Perl program for free.
No, I can't send you any animals or plants, dead or alive. Please don't ask. If you want a scorpion or a tarantula as a pet contact your local pet shop after you have read sufficient information on how to keep such a pet, and which species is good for beginners.
On this site I have exposed several spammers. It might be that you found it because you used Google to find more information on a spammer. Note that I have no relation at all with those spammers.
If you received spam that seems to originate from the johnbokma.com domain note that spammers do use domain names that don't belong to them in the From field of an email. So even though you clearly see my domain name and maybe even an email address of mine as the sender of the email, you can be very sure that if it's spam, I did not send it.
I can't remove you from "the" list, because I don't maintain "the" list spammers use to bother you and me daily, sadly.
I receive quite some comment spam daily. Most of the spam is reported to internet service provider (ISP) that has the spam sending computer connected to its network and each of the hosting providers hosting the spamvertized links. I have quite good contacts with both kinds of companies and most garbage is dropped from their network within a few hours after I have reported the incident.