To create Hebrew fonts in your web document, use &#abcd; for each character, where abcd is the appropriate 4-digit number from the following table.
You may view the source of this document for an example.
שלום
1488 א
1489 ב
1490 ג
1491 ד
1492 ה
1493 ו
1494 ז
1495 ח
1496 ט
1497 י
1498 ך
1499 כ
1500 ל
1501 ם
1502 מ
1503 ן
1504 נ
1505 ס
1506 ע
1507 ף
1508 פ
1509 ץ
1510 צ
1511 ק
1512 ר
1513 ש
1514 ת
1520 װ
1521 ױ
1522 ײ
1523 ׳
1524 ״
To embed Hebrew characters in email messages, at least in Eudora, select a Hebrew font (e.g. Hebrew Book), and use the following keyboard map. I like to use larger Hebrew characters.
א a
ב b
ג g
ד d
ה h
ו u
ז z
ח H
ט T
י i
כ j
ך J
ל l
מ m
ם M
נ n
ן N
ס x
ע o
פ p
ף P
צ c
ץ C
ק q
ר r
ש s
ת t