Disclosure/disclaimer:
Scrapbooking:
Having been a scrapbooker for a number of years, I both design, guest-design and have designed for a number of manufacturers, and thus have received materials/samples from said manufacturers in order to create projects (cards, layouts, other projects) to showcase, both on my blog and in online-galleries. And just because I am not on a particular design-team anymore, it does not mean I'll quit using their products, aquired either by sponsorship/gift or on my own after ended design-team-term.
An updated and complete list of my past and current design-teams can be found on this page, and on this resume-blog, where you also can find a list over guest-design-gigs, some of which have offered samples/materials to work with.
In addition, I possess a number of materials I've aquired on my own, and because I personally am curious what other people might or might not have used on their projects, I usually mention what I have used on mine, sponsored or not.
As for linking, I normally link to either the product-pages of the companies, or the companys blogs/blogposts where appropriate. I do not earn anything by linking or having anybody click on these links. My opinions are my own, and in no way affiliated with "my" manufacturers, present nor past.
All this is normally not mentioned in any of the posts, simply because it's "normal knowledge" among scrapbookers and cardmakers: if you're on someones (manufacturer or kit-club) design-team, it's to be expected that you will be creating projects with said companys products and promoting them on your blog. From time to time the manufacturers I design for will team up with other manufacturers, offering us their products to work with as well. These will normally be mentioned in the blogposts (i.e. "Manufacturer1 is teaming up with Manufacturer2, here's what I created with boths' stuff").
Photography:
I work as a photojournalist and yes, I do have my little photography-one-man-company and love being booked for sessions (which's aquired via word of mouth).
And although I love Nikon dearly, I am not in any way affiliated with them. And as someone who loves photography and sharing, I might occassionally be sharing links, ideas and personal wishlists etc - but am in no way paid or anything - if that ever happens I'll be sure to mention it in the post itself :)
If there's any conflict or anything you're wondering about, please feel free to contact me via email.