Am citit numeroase bloguri, s-au vehiculat nume ca:
"navigare cu urme", "linie de navigare", "navigare inseriata", "trasaj", "firul Ariadnei", "firul ghid", "firul calauzitor".
Avem nevoie de aspectul "secvential" al termenului, asemanator firimiturilor din poveste, deci nu putem folosi fir, care este continuu, lucru validat de bloguri.

Traseul de navigare= trail seamana cu traseul urmat pe munte sau intr-o excursie.
Marcajele sunt exact definite ca si semne pentru a regasi traseul.
“semn indicator al unui drum de munte sau turistic, aplicat pe copaci, pe stânci, pe tăbliţe; totalitatea unor asemenea semne.”
http://www.dexro.ro/cauta.php?q=marcaj&where=
trail= marcaj pe munte
http://hallo.ro/search.do?d=en&l=ro&type=both&query=marcaj
Pastrarea termenului englezesc "breadcrumb" nu m-a atras, mai ales ca nu are semnificatie in romana.
Deci am optat pentru
MARCAJE (ALE TRASEULUI DE NAVIGARE).

Iata citatele si linkurile considerate:

“navigare cu urme”
http://www.wordreference.com/enro/breadcrumbs

“A type of text-based Web site navigation that breaks the site into links of categories and sub-categories allowing major categories of information to be linked in a range of sequential order. Breadcrumb navigation is displayed to the user, so they can easily see exactly where that Web page is located within the Web site. While many types of use a breadcrumb navigation, it is becoming increasingly common for electronic commerce Web sites to display categories of products in this way.”
http://www.webopedia.com/TERM/b/breadcrumb_navigation.html

“The nickname for a top navigation menu that uses a string of section names to identify where you are. For example, when searching for cell phone product reviews on CNET.com, you will see the following "breadcrumbs" just beneath the top level navigation:
> Home > Reviews > Cell Phones and Accessories > All Cell Phones
Likened to the practice of leaving breadcrumbs behind you when you go hiking on a new trail or wandering through the wilderness, these top navigation links help you find your way back to where you started by following them in reverse order.”
http://www.netlingo.com/word/breadcrumb.php

“A description of the trail you took to arrive at your current location. Text breadcrumbs are common on Web sites to help users navigate the site. For example, breadcrumbs such as Products->TVs->Plasma indicate that the Plasma TV Products page you are looking at was retrieved by first clicking Products, then TVs and then Plasma. From Hansel and Gretel The term comes from the Hansel and Gretel fairy tale by the Brothers Grimm. When their father took them into the woods to abandon them, the children dropped crumbs of bread along the way to leave a trail back home.”

http://www.answers.com/topic/breadcrumbs

“Definition: Bread crumbs are a basic navigational tool used on many Web sites. You'll see them at the top of the browser window.
Bread crumbs are links to the pages you've already been to in order to get to the page that you are currently on. They are a "trail" for you to figure out where you've been, basically. Bread crumbs can look like this:
Home-->Computing & Technology-->Web Search
Examples: "I used the bread crumbs to figure out where I was five minutes ago."”
http://websearch.about.com/od/2/g/bread-crumbs.htm

“Breadcrumbs typically appear horizontally across the top of a web page, usually below title bars or headers. They provide links back to each previous page the user navigated through to get to the current page or—in hierarchical site structures—the parent pages of the current one. Breadcrumbs provide a trail for the user to follow back to the starting or entry point. A greater-than sign (>) often serves as hierarchy separator, although designers may use other glyphs (such as »), as well as various graphical treatments.”
http://en.wikipedia.org/wiki/Breadcrumb_(navigation)

Navigare “breadcrumb”
http://office.microsoft.com/ro-ro/sharepointtechnology/HA101...

Navigare inseriata, linie de navigare
„Linie de navigare” nu e tocmai corect, pentru că pot fi aranjate și sub formă arboreșcentă.” „Navigare înseriată” nu-mi zice nimic.
Aș zice ceva cu „trasa”, „trasaj”. Ceva de genul ăsta. “firul Ariadnei” dar nu are aspectul de “secventa” ca firimiturile, e continuu.
În scufundările speologice se numește „firul ghid”. Cine pleacă fără
așa ceva are toate șansele să se întoarcă mort ca să zic așa. “fir calauzitor”.
Acea cea mai bună formulare pe care mi-o imaginez (dar nu o știu) va
trebui să ofere și posibilitatea de a face referire la 'componentele
discrete' ale firului. "Lanț/verigă" este relația care îmi lipsește din
'fir'.
http://groups.google.ro/group/diacritice/browse_thread/threa...

“semn indicator al unui drum de munte sau turistic, aplicat pe copaci, pe stânci, pe tăbliţe; totalitatea unor asemenea semne.”
http://www.dexro.ro/cauta.php?q=marcaj&where=

trail= marcaj pe munte
http://hallo.ro/search.do?d=en&l=ro&type=both&query=marcaj

“Marcajele traseului de navigare”

"Marcajele sunt linkuri catre paginile pe care ai fost pentru a ajunge la pagina curenta. Ele sunt un "traseu" care te poate ajuta sa-ti dai seama practic pe unde ai venit"