Brush pens, and did a quick portrait study of one the folks in our group, talked at great length at how to use the pens with different values and how to apply them to various types of paper, including toned paper. 
When you get to this page, the first thing to do is to go through the video tutorials which give you excellent information on how to get started in setting up your blog.
Notwithstanding the provisions of sections 106 and 106A, the fair use of a copyrighted work, including such use by reproduction in copies or phonorecords or by any other means specified by that section, for purposes such as criticism, comment, news reporting, teaching (including multiple copies for classroom use), scholarship, or research, is not an infringement of copyright. In determining whether the use made of a work in any particular case is a fair use the factors to be considered shall include —
(1) the purpose and character of the use, including whether such use is of a commercial nature or is for nonprofit educational purposes;
(2) the nature of the copyrighted work;
(3) the amount and substantiality of the portion used in relation to the copyrighted work as a whole; and
(4) the effect of the use upon the potential market for or value of the copyrighted work.
The fact that a work is unpublished shall not itself bar a finding of fair use if such finding is made upon consideration of all the above factors.
As you can see, the term "Fair Use" is quite restrictive, and as an artist you must be very careful in relying on this as a defense for using a copyrighted photograph to create a derivative work.
Other than using your own photographs which is the best option, there are resources for using photographs under the Creative Commons License (CC) on the Internet. In many cases in these resources you may be allowed to use the photograph to create a derivative work if you reference the name of the photographer in your name for your derivative work. An example would be "Eye Of The Totem, after a photograph by Time Ennis". Usually you are requested to provide a link to the original photograph as well.
In general in the US and Canada, an artist's work is considered in the Public Domain 50 years after his or her death, and the work may be freely used. However be careful, the estate of the artist might still retain the copyright.
It is also very important to remember that copyright laws may be different from country to country. What may be acceptable in the US or Canada, may not be acceptable in the UK and other parts of the world. (Thanks to Katherine for reminding me about that in the comments below)
Here are some resources on Copyright and Creative Commons Images.
Find Creative Commons Images In Google Images Search.
Wet Canvas Reference Image Library (Membership required Free)
I sincerely hope that you find this information useful, it is not comprehensive, but everything you need to know about Copyright in your country and the world can be found by a simple search on the Internet.
All comments are welcomed.
Happy Copyrighting!!
Hokusai Irises
185-Bamburgh Castle-02 (Gouache)
Image Source: Amazon.com
Sunset Over Howe Sound
, which is a piece of Watercolor Paper glued to a hard cardboard substrate. No stretching is required. The painting surface is a bit different from watercolor paper in that it seems to absorb the pigment quicker. However once you get used to it, you may want to switch over and never have to stretch watercolor paper again.
21" x 15"
